REFERENCES
Arnaud, M., Rothenflug, R., Boulade, O., Vigroux, L. &
Vangioni-Flam, E.
1992, AA, 254, 49
Balachandran, S.C. & Bell, R.A.
1998, Nature, 392, 791
Beers, T.C., Rossi, S., Norris, J.E., Ryan, S.G., Molaro, P. &
Rebolo, R. 1998, in
Primordial Nuclei and their Galactic
Evolution, N. Prantzos,
M. Tosi & R. von Steiger (eds.), Sp. Sci. Rev., 84, 139
Bender, R. 1992, in IAU Symp. no. 149,
Stellar Populations of Galaxies,
B. Barbuy & A. Renzini (eds.), Kluwer, Dordrecht, p. 267
Blitz, L. 1999, in IAC Euroconference:
The Evolution of Galaxies on
Cosmological Timescales, J.E. Beckman & T.J. Mahoney (eds.),
ASP Conf. Series, in press
Boesgaard, A., King, J.R., Deliyannis, C.P. & Vogt, S.S.
1999, AJ, 117, 492
Bonifacio, P. & Molaro, P.
1997, MNRAS, 285, 847
Bressan, A., Chiosi, C. & Fagotto, F.
1994, ApJS, 94, 63
Buzzoni, A.
1995, ApJS, 98, 69
Cen, R. & Ostriker, J.P.
1999, ApJ, 514, 1
Duncan,D., Lambert, D.L. & Lemke, M.
1992, ApJ, 401, 584
Eggen, O.J., Lynden-Bell, D. & Sandage, A.R.
1962, ApJ, 136, 748
Fuhrmann, K.
1998, AA, 338, 161
Fukugita, M., Hogan, C.J. & Peebles, P.J.E.
1998, ApJ, 503, 518
Fulbright, J.P. & Kraft, R.P.
1999, AJ, 118, 527
Gratton, R., Carretta, E., Matteucci, F. & Sneden, C.
1996, preprint
Greggio, L.
1997, MNRAS, 285, 151
Hartwick, F.D.A.
1976, ApJ, 209, 418
Israelian, G., García Lopez, R.J. & Rebolo, R.
1998, ApJ, 507, 805
Jørgensen, I.
1999, MNRAS, 306, 607
Levshakov, S., Tytler, D. & Burles, S. 1998,
astro-ph/9812114, AJ, subm.
Lu, L., Sargent, W.L.W. & Barlow, T.A.
1998, AJ, 115, 55
Lynden-Bell, D.
1975, Vistas in Astr, 19, 299
McWilliam, A.
1997, ARAA, 35, 503
Madau, P., Ferguson, H.C., Dickinson, M.E. et al.
1996, MNRAS, 283, 1388
Mushotzky, R.F. & Loewenstein, M.
1997, ApJ, 481, L63
Nissen, P.E. & Schuster, W.A.
1997, AA, 326, 751
Pagel, B.E.J. 2000, Phys. Rep., in press
Pagel, B.E.J. & Tautvaisiene, G.
1995, MNRAS, 276, 505
Pagel, B.E.J. & Tautvaisiene, G.
1998, MNRAS, 299, 535
Pettini, M. 1999, in ESO Workshop:
Chemical Evolution from Zero to High
Redshift, J. Walsh & M. Rosa (eds.), Springer-Verlag, in press,
astro-ph/9902173
Pettini, M., Ellison, S.L., Steidel, C.C. & Bowen, D.V.
1999a, ApJ, 510, 576
Pettini, M., Ellison, S.L., Steidel, C.C., Shapley, A.E. & Bowen,
D.V. 1999b, preprint
astro-ph/9910131,
ApJ, in press
Ramaty, R., Kozlovsky, B., Lingenfelter, R. & Reeves, H.
1997, ApJ, 488, 730
Ramaty, R. & Lingenfelter, R. E. 1999, in
LiBeB, Cosmic Rays, and Related X- and
-Rays,
R. Ramaty,
E. Vangioni-Flam, M. Cassé & K. Olive (eds.),
ASP Conf. Series, Vol. 171, p. 104
Rauch, M., Miralda-Escudé, J., Sargent, W.L.W. et al.
1998, ApJ, 489, 7
Renzini, A., Ciotti, L., D'Ercole, A. & Pellegrini, S.
1993, ApJ, 419, 52
Rich, R.M. 1999, in
Chemical Evolution from Zero to High Red-shift, J. Walsh
& M. Rosa (eds.), Springer-Verlag, in press
Ryan, S., Norris, J. & Beers, T.C.
1996, ApJ, 471, 254
Searle, L. & Sargent, W.L.W.
1972, ApJ, 173, 25
Steidel, C.C., Adelberger, K.L., Giavalisco, M., Dickinson, M. &
Pettini, M. 1999, ApJ, in press,
astro-ph/9811399
Stephens, A.
1999, AJ, 117, 1771
Thomas, D. 1999, MNRAS, in press,
astro-ph/9901226
Thomas, D., Greggio, L. & Bender, R.
1999, MNRAS, 302, 537
Thomas, D. & Kauffmann, G. 1999, in
Spectrophotometric Dating of Stars
and Galaxies, I. Hubeny, S.Heap & R. Cornett (eds.), ASP
Conf. Series,
astro-ph/9906216
Tsujimoto, T. & Shigeyama,
1998, ApJL, 508, L151
Tsujimoto, T., Shigeyama, & Yoshii, Y. 1999, ApJL, in press,
astro-ph/9905057
Vladilo, G.
1998, ApJ, 493, 583
Worthey, G.
1994, ApJS, 95, 107
Worthey, G., Dorman, B. & Jones, L.A.
1996, AJ, 112, 948
Worthey, G., Faber, S.M. & Gonzalez, J.J.
1992, ApJ, 398, 69