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REFERENCES

1. Adams FC. 1990. Ap. J. 363:578–88
2. Adams FC. 1991. Ap. J. 382:544–54
3. Adams FC, Lada CJ, Shu FH. 1987. Ap. J. 312:788–806
4. Adelson L, Leung CM. 1988. MNRAS 235:349–64
5. Akeson RL, Carlstrom JE. 1997. Ap. J. 491:254-266
6. Alves J, Lada CJ, Lada EA. 1999. Ap. J. in press.
7. Alves J, Lada CJ, Lada EA, Kenyon S, Phelps R. 1998a. Ap. J. 506:292–305
8. André P, Barsony M, Ward-Thompson D. 2000. In Protostars and Planets IV, ed. V Mannings, A Boss, S Russell. Tucson:Univ. of Arizona in press
9. André P, Montmerle T. 1994. Ap. J. 420:837–62
10. André P, Ward-Thompson D, Barsony M. 1993. Ap. J. 406:122–41
11. André P, Ward-Thompson D, Motte F. 1996. Astron. Astrophys. 314:625–35
12. Arons J, Max CE. 1975. Ap. J. Lett. 196:L77–L81
13. Arquilla R, Goldsmith PF. 1985. Ap. J. 297:436–54
14. Arquilla R, Goldsmith PF. 1986. Ap. J. 303:356–74
15. Bachiller R. 1996. Annu. Rev. Astron. Astrophys. 34:111–54
16. Ballesteros-Paredes J, Vázquez-Semadini E, Scalo J. 1999. Ap. J. in press
17. Bally J, Stark A, Wilson RW, Langer WD. 1987. Ap. J. Lett. 312:L45–L49
18. Barnard EE. 1927. In A Photographic Atlas of Selected Regions of the Milky Way ed. EB Frost, MR Calvert Washington: Carnegie Inst. 134 pp.
19. Barranco JA, Goodman AA. 1998. Ap. J. 504:207–22
20. Barrett AH, Meeks ML, Weinreb S. 1964. Nature 202:475–6
21. Bash FN, Green E, Peters WLIII. 1977. Ap. J. 217:464–72
22. Basu S. 1998. Ap. J. 509:229–37
23. Basu S, Mouschovias TCh. 1995. Ap. J. 453:271–83
24. Beckwith S, Persson SE, Neugebauer G, Becklin EE. 1978. Ap. J. 223:464–70
25. Beichman CA, Myers, PC, Emerson JP, Harris S, Mathieu R, Benson PJ, Jennings RE. 1986. Ap. J. 307:337–49
26. Benson PJ, Caselli P, Myers PC. 1998. Ap. J. 506:743–57
27. Benson PJ, Myers PC. 1989. Ap. J. Suppl. 71:89–108
28. Bergin EA, Langer WD. 1997, Ap. J. 486:316–28
29. Bergin EA, Plume R, Williams JP, Myers PC. 1999. Ap. J. in press
30. Bernes C. 1979. Astron. Astrophys. 73:67–73
31. Bertoldi F, McKee C. 1992. Ap. J. 395:140–57
32. Bertoldi F, McKee C. 1996. In Amazing Light, ed. RY Chiao. New York:Springer-Verlag pp. 41–53.
33. Blair GN, Peters WL, Vanden Bout PA. 1975. Ap. J. Lett. 200:L161–4
34. Blitz L. 1993. In Protostars and Planets III, ed. EH Levy, JI Lunine. Tucson:Univ. of Arizona pp. 125-161
35. Blitz L, Magnani L, Mundy L. 1984. Ap. J. Lett. 282:L9–L12
36. Blitz L, Williams JP. 1997. Ap. J. Lett. 488:L145–8
37. Bloemen H. 1989. Annu. Rev. Astron. Astrophys. 27:469–516
38. Bodenheimer P. 1995. Annu. Rev. Astron. Astrophys. 33:199-238
39. Bok BJ, Reilly EF. 1947. Ap. J. 105:255–257
40. Bonazzola S, Falgarone E, Heyvaerts J, Pérault M, Puget JL. 1987. Astron. Astrophys. 172:293–98
41. Bonnell I, Bastien P. 1993. Ap. J. 406:614–28
42. Bonnell IA, Bate MR, Clarke CJ, Pringle, JE. 1997. MNRAS 285:201–08
43. Bonnell IA, Bate MR, Zinnecker H. 1998. MNRAS 298:93–102
44. Bontemps S, André P, Terebey S, Cabrit S. 1996. Astron. Astrophys. 311:858–72
45. Boss A. 1998. Ap. J. Lett. 501:L77-L81
46. Bourke TL, Hyland AR, Robinson G, James SD, Wright CM. 1995. MNRAS 276:1067–84
47. Brand J, Wouterloot JGA. 1995. Astron. Astrophys. 303:851–71
48. Braz MA, Epchtein N. 1983. Astron. Astrophys. Suppl. 54:167–85
49. Brogan CL, Troland TH, Roberts DA, Crutcher RM. 1999. Ap. J. in press
50. Bronfman L, Cohen RS, Alvarez H, May J, Thaddeus P. 1988. Ap. J. 324:248–66
51. Bronfman L, Nyman LA, May J. 1996. Astron. Astrophys. Suppl. 115:81–95
52. Butner HM, Evans NJII, Lester DF, Levreault RM, Strom SE. 1991. Ap. J. 376:636–53
53. Butner HM, Lada EA, Loren RB. 1995. Ap. J. 448:207–25
54. Carr JS, Evans NJII, Lacy JH, Zhou S. 1995. Ap. J. 450:667-90
55. Caselli P, Myers PC. 1995. Ap. J. 446:665–86
56. Caselli P, Walmsley CM, Terzieva R, Herbst E. 1998. Ap. J. 499:234–49
57. Casoli F, Combes F, Gerin M. 1984. Astron. Astrophys. 133:99–109
58. Cesaroni R, Churchwell E, Hofner P, Walmsley CM, Kurtz S. 1994. Astron. Astrophys. 288:903–20
59. Cesaroni R, Felli M, Testi L, Walmsley CM, Olmi L. 1997. Astron. Astrophys. 325:725–44
60. Cesaroni R, Hofner P, Walmsley CM, Churchwell E. 1998 Astron. Astrophys. 331:709–25
61. Cesaroni R, Olmi L, Walmsley CM, Churchwell E, Hofner P. 1994. Ap. J. Lett. 435:L137–40
62. Cesaroni R, Palagi R, Felli M, Catarzi M, Comoretto G, et al. 1988. Astron. Astrophys. Suppl. 76:445–58
63. Cesaroni R, Walmsley CM, Churchwell E. 1992. Astron. Astrophys. 256:618–30
64. Cesaroni R, Walmsley CM, Kömpe C, Churchwell E. 1991. Astron. Astrophys. 252:278–90
65. Chandler CJ, Koerner DW, Sargent AI, Wood DOS. 1995. Ap. J. Lett. 449:L139–42
66. Chandler CJ, Sargent AI. 1997 In From Stardust to Planetesimals ed. Pendleton YJ, Tielens AGGM San Francisco: Astr. Soc. Pac. pp. 25–36
67. Chen H, Myers PC, Ladd EF, Wood DOS. 1995. Ap. J. 445:377–92
68. Cheung AC, Rank DM, Townes CH, Thornton DD, Welch WJ. 1968. Phys. Rev. (Letters) 21:1701–5
69. Choi M, Evans NJII, Gregersen E, Wang Y. 1995. Ap. J. 448:742–47
70. Choi M, Panis J-F, Evans NJII. 1999. Ap. J. Suppl. in press.
71. Churchwell E, Walmsley CM, Cesaroni R. 1990. Astron. Astrophys. Suppl. 83:119–44
72. Churchwell E, Walmsley CM, Wood DOS. 1992. Astron. Astrophys. 253:541–56
73. Churchwell EB. 1993. In Massive Stars: Their Lives in the Interstellar Medium ed. JP Cassinelli, EB Churchwell. San Francisco:ASP pp. 35–44
74. Churchwell EB. 1999. In The Physics of Star Formation and Early Stellar Evolution II, ed. CJ Lada, ND Kylafis. Dordrecht:Kluwer in press
75. Chyba CF, Sagan C. 1992. Nature 335:125–32
76. Ciolek GE, Königl A. 1998. Ap. J. 504:257–79
77. Clemens DP, Barvainis R. 1988. Ap. J. Suppl. 68:257–86
78. Clemens DP, Sanders DB, Scoville NZ. 1988. Ap. J. 327:139–55
79. Clemens DP, Yun JL, Heyer MH. 1991. Ap. J. Suppl. 75:877–904
80. Colomé C, Di Francesco J, Harvey PM. 1996. Ap. J. 461:909–19
81. Combes F. 1991. Annu. Rev. Astron. Astrophys. 29:195–237
82. Crovisier J. 1999. In Formation and Evolution of Solids in Space, ed. JM Greenberg. Dordrecht: Kluwer in press
83. Crutcher RM. 1998. Astro. Lett & Comm. 37:113–24
84. Crutcher RM. 1999a. Ap. J. in press
85. Crutcher RM. 1999b. In Interstellar Turbulence, Proceedings of the 2nd Guillermo Haro Conference ed. J Franco, A Carraminana. Cambridge: Cambridge Univ. Press in press
86. Crutcher RM, Troland TH, Goodman AA, Heiles C, Kazès I, Myers PC. 1993. Ap. J. 407:175–84
87. Crutcher RM, Troland TH, Lazareff B, Kazès I. 1996. Ap. J. 456:217–24
88. Cunningham CR, Gear WK, Duncan WD, Hastings PR, Holland WS. 1994. Proc. SPIE 2198:638–49
89. de Boisanger C, Helmich FP, van Dishoeck EF. 1996. Astron. Astrophys. 310:315–27
90. de Zeeuw PT, Hoogerwerf R, de Bruijne JHJ, Brown AGA, Blaauw A. 1999. A. J. 117:354–99
91. Dickel HR, Auer LH. 1994. Ap. J. 437:222–38
92. Dickman RL. 1978. Ap. J. Suppl. 37:407–27
93. Dickman RL. 1975. Ap. J. 202:50–57
94. Di Francesco J, Evans NJII, Harvey PM, Mundy LG, Butner HM. 1998. Ap. J. 509:324–49
95. Di Francesco J, Evans NJII, Harvey PM, Mundy LG, Guilloteau S, Chandler CJ. 1997. Ap. J. 482:433–41
96. Doty SD, Leung CM. 1994. Ap. J. 424:729–47
97. Draine BT, McKee CF. 1993. Annu. Rev. Astron. Astrophys. 31:373–432
98. Egan MP, Leung CM, Spagna GR. 1988. Comput. Physics Comm. 48:271–92
99. Elmegreen BG. 1985 In Protostars and Planets II, ed. DC Black, MS Matthews. Tucson:Univ. of Arizona pp.33–58
100. Elmegreen BG, Falgarone E. 1996. Ap. J. 471:816–821
101. Elmegreen BG, Lada CJ. 1977. Ap. J. 214:725–41
102. Evans NJII. 1980 In Interstellar Molecules ed. BH Andrew Dordrecht: Reidel pp. 1–19
103. Evans NJII. 1989. Rev. Mex. Astr. Astrof. 18:21–28
104. Evans NJII. 1991. In Frontiers of Stellar Evolution, ed. DL Lambert San Francisco:ASP pp.45–95
105. Evans NJII, Blair GN, Beckwith S. 1977. Ap. J. 217:448–63
106. Evans NJII, Kutner ML, Mundy LG. 1987. Ap. J. 323:145–53
107. Evans NJII, Lacy JH, Carr JS. 1991. Ap. J. 383:674–92
108. Falgarone E, Lis DC, Phillips TG, Pouquet A, Porter DH, Woodward PR. 1994. Ap. J. 436:728–40
109. Falgarone E, Panis J-F, Heithausen A, Pérault M, Stutzki J, Puget J-L, Bensch F. 1998 Astron. Astrophys. 331:669–96
110. Fiedler RA, Mouschovias TCh. 1993. Ap. J. 415:680–700
111. Field GB. 1978. In Protostars and Planets, ed. T Gehrels. Tucson:Univ. of Arizona pp. 243–64
112. Foster PN, Chevalier RA. 1993. Ap. J. 416:303-11
113. Frerking MA, Langer WD, Wilson RW. 1982. Ap. J. 262:590–605
114. Fulkerson SA, Clark FO. 1984. Ap. J. 287:723–27
115. Fuller GA. 1989. Molecular Studies of Dense Cores. PhD thesis. Univ. Calif., Berkeley 280 pp.
116. Fuller GA, Myers PC. 1992 Ap. J. 384:523–27
117. Fuller GA, Myers PC. 1993 Ap. J. 418:273–86
118. Galli D, Shu FH. 1993a. Ap. J. 417:220–42
119. Galli D, Shu FH. 1993b. Ap. J. 417:243–58
120. Gammie CF, Ostriker EC. 1996. Ap. J. 466:814–30
121. Geballe T, Oka T. 1996. Nature 384:334–35
122. Genzel R, Stutzki J. 1989 Annu. Rev. Astron. Astrophys. 27:41–85
123. Genzel R. 1992. In The Galactic Interstellar Medium ed. D. Pfenniger, P. Bartholdi (Berlin:Springer-Verlag), pp.275–391
124. Goldreich P, Kwan J. 1974. Ap. J. 189:441–453
125. Goldreich P, Kylafis ND. 1981. Ap. J. Lett. 243:L75–L78
126. Goldsmith PF, Langer WD. 1978. Ap. J. 222:881–95
127. Goldsmith PF. 1972. Ap. J. 176:597–610
128. Goodman AA. 1996. In ASP Conf. Ser. 97, Polarimetry of the Interstellar Medium ed. WG Roberge, DCB Whittet San Francisco: ASP pp. 325–44
129. Goodman AA, Barranco JA, Wilner DJ, Heyer MH. 1998. Ap. J. 504:223–46
130. Goodman AA, Benson PJ, Fuller GA, Myers PC. 1993. Ap. J. 406:528–547
131. Greaves JS, Holland WS, Friberg P, Dent WRF. 1999. Ap. J. Lett. 512:L139–42
132. Gregersen EM, Evans NJII, Zhou S, Choi M. 1997. Ap. J. 484:256–76
133. Gregersen EM. 1998 Collapse and Beyond: An Investigation of the Star Formation Process. PhD thesis. Univ. Texas, Austin. 187 pp.
134. Haas MR, Davidson JA, Erickson EF. (eds.) 1995 Airborne Astronomy Symposium on the Galactic Ecosystem: From Gas to Stars to Dust San Francisco: Astr. Soc. Pac. 737 pp.
135. Harju J, Walmsley CM, Wouterloot JGA. 1993. Astron. Astrophys. Suppl. 98:51-76
136. Hartmann L. 1998 Accretion Processes in Star Formation Cambridge:Cambridge Univ. Press. 237 pp.
137. Heiles C, Goodman AA, McKee CF Zweibel EG. 1993. In Protostars and Planets III, ed. EH Levy, JI Lunine. Tucson:Univ. of Arizona pp. 279–326
138. Heithausen A, Bensch F, Stutzki J, Falgarone E, Panis J-F. 1998. Astron. Astrophys. 331:L65–L68
139. Helmich FP, Jansen DJ, de Graauw TH, Groesbeck TD, van Dishoeck EF. 1994. Astron. Astrophys. 283:626–34
140. Henning Th, Burkert A, Launhardt R, Leinert Ch, Stecklum B. 1998. Astron. Astrophys. 336:565–86
141. Henning Th, Launhardt R. 1998. Astron. Astrophys. 338:223-42
142. Henriksen RN, André P, Bontemps S. 1997. Astron. Astrophys. 323:549–65
143. Heyer M, Terebey S. 1998. Ap. J. 502:265–77
144. Hildebrand RH. 1983. QJRAS 24:267–82
145. Hildebrand RH. 1988. QJRAS 29:327–51
146. Hillenbrand LA, Hartmann LW. 1998. Ap. J. 492:540–53
147. Ho, PTP, Townes, CH. 1983. Annu. Rev. Astron. Astrophys. 21:239–70
148. Hogerheijde MR, van Dishoeck EF, Blake GA, van Langevelde HJ. 1998. Ap. J. 502:315–36
149. Hollenbach DJ, Johnstone D, Lizano S, Shu F. 1994. Ap. J. 428:654–69
150. Hollenbach D, Tielens AGGM. 1997. Annu. Rev. Astron. Astrophys. 35:179–215
151. Houlahan P, Scalo J. 1992. Ap. J. 393:172–87
152. Hunter C. 1977. Ap. J. 218:834–45
153. Hunter TR, Benford DJ, Serabyn E. 1996. PASP 108:1042–50
154. Jaffe DT, Hildebrand RH, Keene J, Harper DA, Loewenstein RF, Moran JM. 1984. Ap. J. 281:225–36
155. Jaffe DT, Martín-Pintado J. 1999. Ap. J. in press
156. Jeans JH. 1928. Astronomy and Cosmogony Cambridge: Cambridge Univ. Press p. 340
157. Johnstone D, Bally J. 1999, Ap. J. Lett. 510:L49–L53
158. Juvela M. 1996. Astron. Astrophys. Suppl. 118:191–226
159. Juvela M. 1997. Astron. Astrophys. 322:943–61
160. Juvela M. 1998. Astron. Astrophys. 329:659–82
161. Kane BD, Clemens DP, Myers PC. 1994. Ap. J. Lett. 433:L49–L52
162. Kaufman MJ, Hollenbach DJ, Tielens AGGM. 1998. Ap. J. 497:276–87
163. Keene J. 1981. Ap. J. 245:115–23
164. Kennicutt RCJr. 1998. Annu. Rev. Astron. Astrophys. 36:189–231
165. Keto ER, Ho PTP, & Haschick AD. 1988. Ap. J. 324:920–30
166. Klessen RS, Burkert A, Bate M. 1998. Ap. J. Lett. 501:L205–8
167. Kramer C, Alves J, Lada C, Lada E, Sievers A, Ungerechts H, Walmsley M. 1998a. Astron. Astrophys. 329:L33–L36.
168. Kramer C, Alves J, Lada CJ, Lada EA, Sievers A, Ungerechts H, Walmsley CM. 1999. Astron. Astrophys. 342:257–70
169. Kramer C, Stutzki J, Rohrig R, Corneliussen U. 1998b. Astron. Astrophys. 329:249–264
170. Kreysa E. 1992. In ESA Symposium on Photon Detectors for Space Instrumentation, Noodwijk ESA SP-356 p. 356
171. Kudritzki RP, Hummer DG, Pauldrich AWA, Puls J, Najarro F, Imhoff C. 1992. Astron. Astrophys. 257:655–62
172. Kuiper TBH, Langer WD, Velusamy T. 1996, Ap. J. 468:761–73
173. Kurtz S, Cesaroni R, Churchwell EB, Hofner P, Walmsley M. 2000. In Protostars and Planets IV, ed. V Mannings, A Boss, S Russell. Tucson:Univ. of Arizona in press
174. Lacy JH, Knacke R, Geballe TR, Tokunaga AT. 1994. Ap. J. Lett. 428:L69–L72
175. Lada CJ. 1987. In Star Forming Regions, IAU Symposium 115, ed. M Peimbert J Jugaku. Dordrecht:Reidel pp. 1–18
176. Lada CJ. 1991 In The Physics of Star Formation and Early Stellar Evolution, ed. CJ Lada, ND Kylafis. Dordrecht:Kluwer 1991 pp. 329–63
177. Lada CJ. 1999 In The Physics of Star Formation and Early Stellar Evolution II, ed. CJ Lada, ND Kylafis. Dordrecht:Kluwer in press
178. Lada CJ, Alves J, Lada EA. 1999. Ap. J. 512:250–59
179. Lada CJ, Kylafis ND. (eds.) 1999. The Physics of Star Formation and Early Stellar Evolution II Dordrecht:Kluwer in press
180. Lada CJ, Lada EA. 1991. In The Formation and Evolution of Star Clusters ed. K Janes. San Francisco:ASP pp. 3–22
181. Lada CJ, Lada EA, Clemens DP, Bally J. 1994. Ap. J. 429:694–709
182. Lada CJ, Wilking BA. 1984. Ap. J. 287:610–21
183. Lada EA. 1992. Ap. J. Lett. 393:L25–L28
184. Lada EA, Bally J, Stark AA. 1991. Ap. J. 368:432–44
185. Lada EA, DePoy DL, Evans NJII, Gatley I. 1991. Ap. J. 371:171–82
186. Lada, EA, Evans NJII, Falgarone E. 1997. Ap. J. 488:286–306
187. Lada EA, Strom KM, Myers, PC. 1993. In Protostars and Planets III, ed. EH Levy, JI Lunine. Tucson:Univ. of Arizona pp.245–77
188. Ladd EF, Adams FC, Casey S, Davidson JA, Fuller GA et al. 1991. Ap. J. 382:555–69
189. Ladd EF, Fuller GA, Deane JR. 1998. Ap. J. 495:871–90
190. Larson RB. 1981. MNRAS 194:809–26
191. Larson RB. 1969. MNRAS 145:271–95
192. Launhardt R, Evans, NJII, Wang, YS, Clemens DP, Henning Th, Yun J. 1998. Ap. J. Suppl. 119:59–74
193. Lazarian A, Goodman AA, Myers PC. 1997. Ap. J. 490:273–80
194. Lee CW, Tafalla M, Myers PC. 1999. in press
195. Leisawitz D, Bash FN, Thaddeus P. 1989. Ap. J. Suppl. 70:737–812
196. Leung CM. 1975. Ap. J. 199:340–60
197. Leung CM, Brown RL. 1977. Ap. J. Lett. 214:L73–L78
198. Li W., Evans NJII, Lada EA. 1997. Ap. J. 488:277–85
199. Li ZY. 1998. Ap. J. 497:850–58
200. Li ZY, Shu FH. 1996. Ap. J. 472:211-24
201. Lin DNC, Papaloizou JCB. 1996. Annu. Rev. Astron. Astrophys. 34:703–47
202. Looney LW, Mundy LG, Welch WJ. 1997. Ap. J. Lett. 484:L157–60
203. Loren RB. 1976. Ap. J. 209:466–88
204. Loren RB, Mundy LG. 1984. Ap. J. 286:232–51
205. Loren RB, Sandqvist Aa, Wootten A. 1983. Ap. J. 270:620–40
206. Lucas R. 1974. Astron. Astrophys. 36:465–67
207. Luhman ML, Jaffe DT. 1996. Ap. J. 463:191–204
208. Lynds BT. 1962. Ap. J. Suppl. 7:1–52
209. Mac Low M-M, Klessen RS, Burkert, A, Smith MD. 1998. Phys. Rev. Lett. 80:2754–57
210. Mangum JG, Wootten A. 1993. Ap. J. Suppl. 89:123–53
211. Mannings V, Boss A, Russell S. (eds.) 2000. Protostars and Planets IV Tucson:Univ. of Arizona in press
212. Mannings V, Sargent AI. 1997. Ap. J. 490:792–802
213. Manske V, Henning Th. 1998. Astron. Astrophys. 337:85-95
214. Mardones, D, Myers PC, Tafalla M, Wilner DJ, Bachiller R, Garay G. 1997. Ap. J. 489:719–33
215. Martin HM, Hills RE, Sanders DB. 1984. MNRAS 208:35–55
216. Martin RN, Barrett AH. 1978. Ap. J. Suppl. 36:1–51
217. Mathieu RD. 1994. Annu. Rev. Astron. Astrophys. 32:465–530
218. Mathis JS. 1990. Annu. Rev. Astron. Astrophys. 28:37–70
219. Mathis JS, Rumpl W, Nordsieck KH. 1977. Ap. J. 217:425–33
220. Mauersberger R, Henkel C. 1989. Astron. Astrophys. 223:79–88
221. McCaughrean MJ, Stauffer JR. 1994. A. J. 108:1382–97
222. McKee C. 1999. In The Physics of Star Formation and Early Stellar Evolution II, ed. CJ Lada, ND Kylafis. Dordrecht:Kluwer in press
223. McKee CF. 1989. Ap. J. 345:782–801
224. McKee CF, Zweibel EG. 1992. Ap. J. 399:551–62
225. McKee CF, Zweibel EG, Goodman AA, Heiles C. 1993. In Protostars and Planets III, ed. EH Levy, JI Lunine. Tucson:Univ. of Arizona pp.327–66
226. McLaughlin DE, Pudritz RE. 1997. Ap. J. 476:750–65
227. Mead KN, Kutner ML, Evans, NJII. 1990. Ap. J. 354:492–503
228. Men’shchikov AB, Henning Th. 1997. Astron. Astrophys. 318:879–907
229. Menten KM. 1999. Annu. Rev. Astron. Astrophys. in press
230. Menten KM, Serabyn E, Güsten R, Wilson TL. 1987. Astron. Astrophys. 177:L57–L60
231. Mestel L. 1965. QJRAS 6:265–98
232. Mestel L. 1985. In Protostars and Planets II, ed. DC Black, MS Matthews. Tucson:Univ. of Arizona pp. 320–39
233. Mestel L, Spitzer L. 1956. MNRAS 116:503–14
234. Meyer MR, Adams FC, Hillenbrand LA, Carpenter JM, Larson RB. 2000. In Protostars and Planets IV, ed. V Mannings, A Boss, S Russell. Tucson:Univ. of Arizona in press
235. Millar T. 1997 In Molecules in Astrophysics: Probes and Processes, IAU Symposium 178, ed. EF van Dishoeck. Dordrecht:Reidel pp. 75–88
236. Mitchell GF, Maillard J-P, Allen M, Beer R, Belcourt K. 1990. Ap. J. 363:554–73
237. Mizuno A, Onishi T, Yonekura Y, Nagahama T, Ogawa H, Fukui Y. 1995. Ap. J. 445:L161–65
238. Molinari S, Testi L, Brand J, Cesaroni R, Palla F. 1998. Ap. J. Lett. 505:L39–L42
239. Momose M, Ohashi N, Kawabe R, Nakano T, Hayashi M. 1998. Ap. J. 504:314–33
240. Mooney TJ, Solomon PM. 1988. Ap. J. 334:L51–L54
241. Motte F, André P, Neri R. 1998. Astron. Astrophys. 336:150–72
242. Mouschovias TCh. 1991. Ap. J. 373:169–86
243. Mouschovias TCh. 1999. In The Physics of Star Formation and Early Stellar Evolution II, ed. CJ Lada, ND Kylafis. Dordrecht:Kluwer in press
244. Mouschovias TCH, Spitzer L. 1976. Ap. J. 210:326–7
245. Mundy LG, Evans NJII, Snell RL, Goldsmith PF. 1987. Ap. J. 318:392–409
246. Mundy LG, Looney LW, Welch WJ. 2000. In Protostars and Planets IV, ed. V Mannings, A Boss, S Russell. Tucson:Univ. of Arizona in press
247. Mundy LG, Snell RL, Evans NJII, Goldsmith PF, Bally J. 1986. Ap. J. 306:670–81
248. Mundy LG, Wootten A, Wilking BA, Blake GA, Sargent AI. 1992. Ap. J. 385:306–13
249. Myers PC. 1983. Ap. J. 270:105–18
250. Myers PC. 1985 In Protostars and Planets II, ed. DC Black, MS Matthews. Tucson:Univ. of Arizona pp. 81–103
251. Myers PC. 1998. Ap. J. Lett. 496:L109–L112
252. Myers PC, Adams FC, Chen H, Schaff E. 1998. Ap. J. 492:703–26
253. Myers PC, Bachiller R, Caselli P, Fuller GA, Mardones D, Tafalla M, Wilner DJ. 1995. Ap. J. Lett. 449:L65–L68
254. Myers PC, Benson PJ. 1983. Ap. J. 266:309–20
255. Myers PC, Evans NJII, Ohashi N. 2000. In Protostars and Planets IV, ed. V Mannings, A Boss, S Russell. Tucson:Univ. of Arizona in press
256. Myers PC, Fuller GA. 1992. Ap. J. 396:631–42
257. Myers PC, Fuller GA, Goodman AA, Benson PJ. 1991. Ap. J. 376:561–72
258. Myers PC, Goodman A. 1988. Ap. J. Lett. 326:L27–L30
259. Myers PC, Ladd EF. 1993. Ap. J. Lett. 413:L47–L50
260. Myers PC, Lazarian A. 1998. Ap. J. Lett. 507:L157–60
261. Myers PC, Linke RA, Benson PJ. 1983. Ap. J. 264:517–37
262. Myers PC, Mardones D, Tafalla M, Williams JP, Wilner DJ. 1996. Ap. J. Lett. 465:L133–36
263. Nakano T. 1998. Ap. J. 494:587–604
264. Narayanan, G, Walker CK, Buckley HD. 1998. Ap. J. 496:292–310
265. Natta A, Grinin VP, Mannings V. 2000. In Protostars and Planets IV, ed. V Mannings, A Boss, S Russell. Tucson:Univ. of Arizona in press
266. Natta A, Palla F, Butner HM, Evans NJII, Harvey PM. 1993. Ap. J. 406:674–91
267. Norman CA, Silk J. 1980. Ap. J. 238:158–74
268. Ohashi N, Hayashi M, Ho PTP, Momose M. 1997b Ap. J. 475:211–23
269. Ohashi N, Hayashi M, Ho PTP, Momose M, Tamura M, Hirano N, Sargent AI. 1997a. Ap. J. 488:317–29
270. Ohashi N, Hayashi M, Kawabe R, Ishiguro M. 1996. Ap. J. 466:317–37
271. Ohishi M. 1997. In Molecules in Astrophysics: Probes and Processes, IAU Symposium 178, ed. EF van Dishoeck. Dordrecht:Reidel pp. 61-74
272. Olmi L, Cesaroni R, Walmsley CM. 1993. Astron. Astrophys. 276:489–506
273. Onishi T, Mizuno A, Kawamura A, Ogawa H, Fukui Y. 1996. Ap. J. 465:815–24
274. Onishi T, Mizuno A, Kawamura A, Ogawa H, Fukui Y. 1998. Ap. J. 502:296–14
275. Ossenkopf V, Henning Th. 1994. Astron. Astrophys. 291:943–59
276. Padoan P, Jones BJT, Nordlund AP. 1997. Ap. J. 474:730–34
277. Palmer P, Zuckerman B, Buhl D, Snyder LE. 1969. Ap. J. Lett. 156:L147–50
278. Papaloizou JCB, Lin DNC. 1995. Annu. Rev. Astron. Astrophys. 33:505–40
279. Park YS, Hong SS. 1995 Astron. Astrophys. 300:890–902
280. Park YS, Hong SS. 1998 Ap. J. 494:605–13
281. Pendleton YJ, Tielens AGGM (eds.) 1997. From Stardust to Planetesimals San Francisco: ASP 480 pp.
282. Pendleton YJ. 1997 Ori. Life Evol. Biosph. 27:53–78
283. Penston MV. 1969. MNRAS 144:425–48
284. Penzias AA, Solomon PM, Jefferts KB, Wilson RW. 1972. Ap. J. Lett. 174:L43-L48
285. Plume R, Jaffe DT, Evans NJII. 1992. Ap. J. Suppl. 78:505–15
286. Plume R, Jaffe DT, Evans NJII, Martín-Pintado J, Gómez-González J. 1997. Ap. J. 476:730–49
287. Rao R, Crutcher RM, Plambeck RL, Wright MCH. 1998. Ap. J. Lett. 502:L75–L78
288. Rawlings JMC, Hartquist TW, Menten KM, Williams DA. 1992. MNRAS 255:471–85
289. Rodríguez LF, D’Alessio P, Wilner DJ, Ho PTP, Torrelles JM, et al. 1998. Nature 395:355–57
290. Rowan-Robinson M, Mann RG, Oliver SJ, Efstathiou A, Eaton N, et al. 1997. MNRAS 289:490–96
291. Ryden BS. 1996. Ap. J. 471:822–31
292. Safier PN, McKee CF, Stahler SW. 1997. Ap. J. 485:660–79
293. Sanders DB, Mirabel IF. 1996. Annu. Rev. Astron. Astrophys. 34:749–92
294. Sanders DB, Scoville NZ, Soifer BT. 1991. Ap. J. 370:158–71
295. Saraceno P, André P, Ceccarelli C, Griffin M, Molinari S. 1996. Astron. Astrophys. 309:827–39
296. Sargent AI. 1996. In Disks and Outflows from Young Stars ed. SVW Beckwith, J Staude, A Quetz, A Natta Berlin: Springer pp. 1–23
297. Sargent AI, Welch WJ. 1993 Annu. Rev. Astron. Astrophys. 31:297–343
298. Scalo J. 1985. In Protostars and Planets II, ed. DC Black, MS Matthews. Tucson:Univ. of Arizona pp. 201–96
299. Scalo J. 1986. Fund. Cosmic Phys. 11:1–278
300. Scalo J. 1998. In The Stellar Initial Mass Function ed. G Gilmore, I Parry, S Ryan. San Francisco:ASP pp. 201–36
301. Scalo J, Lazarian A. 1996. Ap. J. 469:189–93
302. Scalo J, Vázquez-Semadini E, Chappell D, Passot T. 1998. Ap. J. 504:835–53
303. Schleuning DA. 1998. Ap. J. 493:811–25
304. Shepherd DS, Churchwell E. 1996. Ap. J. 472:225–39
305. Shepherd DS, Kurtz SE. 1999. Ap. J. in press
306. Shirley Y, Evans NJ, Rawlings JMC, Gregersen E. 1998. Bull. Amer. Astro. Soc. 30:1358
307. Shu FH. 1977. Ap. J. 214:488–97
308. Shu FH, Adams FC, Lizano S. 1987a. Annu. Rev. Astron. Astrophys. 25:23–81
309. Shu FH, Allen A, Shang H, Ostriker EC, Li ZY. 1999. In The Physics of Star Formation and Early Stellar Evolution II, ed. CJ Lada, ND Kylafis. Dordrecht:Kluwer in press
310. Shu FH, Lizano S, Adams FC. 1987b. In Star Forming Regions, IAU Symposium 115, ed. M Peimbert J Jugaku. Dordrecht:Reidel pp. 417-34
311. Snell RL. 1981. Ap. J. Suppl. 45:121–75
312. Snell RL, Loren RB. 1977. Ap. J. 211:122–7
313. Snell RL, Mundy LG, Goldsmith PF, Evans NJII, Erickson NR. 1984. Ap. J. 276:625–45
314. Solomon PM, Rivolo AR. 1989. Ap. J. 339:919–25
315. Solomon PM, Rivolo AR, Barrett J, Yahil A. 1987. Ap. J. 319:730–41
316. Spencer RG, Leung CM. 1978. Ap. J. 222:140–52
317. Spitzer LJr. 1978. Physical Processes in the Interstellar Medium New York: Wiley p. 282
318. Stahler SW, Palla F, Ho PTP. 2000. In Protostars and Planets IV, ed. V Mannings, A Boss, S Russell. Tucson:Univ. of Arizona in press
319. Sternberg A, Yan M, Dalgarno A. 1997. In Molecules in Astrophysics: Probes and Processes, IAU Symposium 178, ed. EF van Dishoeck. Dordrecht:Reidel pp. 141–53
320. Stone JM, Ostriker EC, Gammie CF. 1999. In Interstellar Turbulence, Proceedings of the 2nd Guillermo Haro Conference ed. J Franco, A Carraminana. Cambridge: Cambridge Univ. Press in press
321. Strom KM, Strom SE, Merrill KM. 1993. Ap. J. 412:233–53
322. Strong AW, Bennett K, Bloemen H, Diehl R, Hermsen W, et al. 1994. Astron. Astrophys. 292:82–91
323. Stutzki J, Güsten R. 1990. Ap. J. 356:513–33
324. Tafalla M, Mardones D, Myers PC, Caselli P, Bachiller R, Benson PJ. 1998. Ap. J. 504:900–14
325. Takahashi T, Silk J, Hollenbach DJ. 1983. Ap. J. 275:145–62
326. Tatematsu K, Umemoto T, Heyer MH, Hirano N, Kameya O, Jaffe DT. 1998. Ap. J. Suppl. 118:517–39
327. Tatematsu K, Umemoto T, Kameya O, Hirano N, Hasegawa T, et al. 1993. Ap. J. 404:643–62
328. Terebey S, Chandler CJ, André P. 1993. Ap. J. 414:759–72
329. Terebey S, Shu FH, Cassen P. 1984. Ap. J. 286:529–51
330. Testi L, Palla F, Prusti T, Natta A, Maltagliati S. 1997. Astron. Astrophys. 320:159–66
331. Testi L, Sargent AI. 1998. Ap. J. Lett. 508:L91–L94
332. Townes, CH, Cheung, AC. 1969. Ap. J. Lett. 157:L103–8
333. Truelove JK, Klein RI, McKee CF, Holliman JHII, Howell LH, Greenough JA, Woods DT. 1998. Ap. J. 495:821–52
334. van der Tak FFS, van Dishoeck EF, Evans NJII, Bakker EJ, Blake GA. 1999. Ap. J. in press
335. van Dishoeck EF, Blake, GA. 1998. Annu. Rev. Astron. Astrophys. 36:317–68
336. van Dishoeck EF, Helmich FP, Schutte WA, Ehrenfreund P, Lahuis F, et al. 1998. In Star Formation with the Infrared Space Observatory (ISO), ed. JL Yun, R. Liseau. San Francisco: ASP pp. 54–65
337. Vázquez-Semadini E. 1994. Ap. J. 423:681–92
338. Vázquez-Semadini E, Ostriker EC, Passot T, Gammie CF, Stone JM. 2000. In Protostars and Planets IV, ed. V Mannings, A Boss, S Russell. Tucson:Univ. of Arizona in press
339. Velusamy T, Kuiper TBH, Langer WD. 1995. Ap. J. Lett. 451:L75–L78
340. Vrba FJ, Strom SE, Strom KM. 1976. A. J. 81:958–69
341. Walker CK, Lada CJ, Young ET, Maloney PR, Wilking BA. 1986. Ap. J. Lett. 309:L47–L61
342. Walker CK, Narayanan G, Boss AP. 1994. Ap. J. 431:767–82
343. Walmsley M. 1995. Rev. Mex. Astr. Astrof. Conf. Ser. 1 pp. 137–48
344. Wang Y, Evans NJII, Zhou S, Clemens DP. 1995. Ap. J. 454:217–32
345. Wang Y, Jaffe DT, Evans NJII, Hayashi M, Tatematsu K, Zhou S. 1993. Ap. J. 419:707–24
346. Ward-Thompson D, André P, Motte F. 1998. In Star Formation with the Infrared Space Observatory (ISO), ed. JL Yun, R. Liseau. San Francisco: ASP pp.195–202
347. Ward-Thompson D, Motte F, André P. 1999. MNRAS in press
348. Ward-Thompson D, Scott PF, Hills RE, André P. 1994. MNRAS 268:276–90
349. Welch WJ, Dreher JW, Jackson JM, Terebey S, Vogel SN. 1988. Science 238:1550–55
350. White RE. 1977. Ap. J. 211:744–54
351. Wiesemeyer H. 1997. The Spectral Signature of Accretion in Low-Mass Protostars. PhD dissertation. Univ. Bonn. 153 pp.
352. Wiesemeyer H. 1999. Astron. Astrophys. in press
353. Williams JP, Bergin EA, Caselli P, Myers PC, Plume R. 1998. Ap. J. 503:689–99
354. Williams JP, Blitz L, McKee CF. 2000. In Protostars and Planets IV, ed. V Mannings, A Boss, S Russell. Tucson:Univ. of Arizona in press
355. Williams JP, McKee CF. 1997. Ap. J. 476:166–83
356. Wilner DJ, Myers PC, Mardones D, Tafalla M. 1999. Ap. J. in prep
357. Wilner DJ, Welch WJ, Forster JR. 1995. Ap. J. Lett. 449:L73–L76
358. Wolf-Chase GA, Gregersen E. 1997. Ap. J. Lett. 479:L67–L70
359. Wolfire MG, Hollenbach D, Tielens AGGM. 1993. Ap. J. 402:195–215
360. Wood DOS, Churchwell EB. 1989. Ap. J. 340:265–72
361. Wootten A. 1989. Ap. J. 337:858–64
362. Wu Y, Evans NJII. 1989. Ap. J. 340:307–13
363. Yates JA, Field D, Gray MD. 1997. MNRAS 285:303–16
364. Young LM, Keto E, Ho PTP. 1998. Ap. J. 507:270–80
365. Yun JL. 1993. A Characterization of Young Stellar Objects in Bok Globules: Infrared Imaging, Spectral Energy Distributions, and Molecular Outflows. PhD dissertation. Boston University. 230 pp.
366. Yun JL, Clemens DP. 1990. Ap. J. Lett. 365:L73–L76
367. Yun JL, Clemens DP. 1992. Ap. J. Lett. 385:L21–L25
368. Yun JL, Liseau R. (eds.) 1998. Star Formation with the Infrared Space Observatory (ISO) San Francisco: ASP 448 pp.
369. Zhang Q, Ho PTP. 1997. Ap. J. 488:241–57
370. Zhang Q, Ho PTP, Ohashi N. 1998a. Ap. J. 494:636–56
371. Zhang Q, Hunter TR, Sridharan TK. 1998b. Ap. J. Lett. 505:L151–54
372. Zhou S. 1992. Ap. J. 394:204–216
373. Zhou S. 1995. Ap. J. 442:685–93
374. Zhou S, Butner HM, Evans NJII, Güsten R, Kutner ML, Mundy LG. 1994b. Ap. J. 428:219–32
375. Zhou S, Evans NJII. 1994. In Clouds, Cores, and Low Mass Stars, ed. DP Clemens, R. Barvainis. San Francisco: ASP pp. 183–91
376. Zhou S, Evans NJII, Butner HM, Kutner ML, Leung CM, Mundy LG. 1990. Ap. J. 363:168-79
377. Zhou S, Evans NJII, Güsten R, Mundy LG, Kutner ML. 1991. Ap. J. 372:518–613
378. Zhou S, Evans NJII, Kömpe C, Walmsley CM. 1993. Ap. J. 404:232–46
379. Zhou S, Evans NJII, Wang Y. 1996. Ap. J. 466:296–308
380. Zhou S, Evans NJII, Wang Y, Peng R, Lo KY. 1994a. Ap. J. 433:131–48
381. Zhou S, Wu Y, Evans NJII, Fuller GA, Myers PC. 1989. Ap. J. 346:168–79
382. Zinchenko I, Mattila K, Toriseva M. 1995. Astron. Astrophys. Suppl. 111:95–114
383. Zuckerman B, Evans, NJII. 1974. Ap. J. Lett. 192:L149–52
384. Zuckerman B, Palmer P. 1974. Annu. Rev. Astron. Astrophys. 12:279–313
385. Zweibel E. 1998. Ap. J. 499:746–53