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REFERENCES

  1. Baldwin, J. R., Frogel, J. A., and Persson, S. E. 1973, Ap. J., 184, 427.
  2. de Vaucouleurs, G., and de Vaucouleurs, A. 1964, Reference Catalogue of Bright Galaxies (RCBG) (Austin: University of Texas Press).
  3. Frogel, J. A. 1971, Ph.D. thesis, California Institute of Technology.
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  5. Frogel, J. A., Persson, S. E., Aaronson, M., Becklin, E. E., and Matthews, K. 1975a, presented at the Tercentenary Symposium of the Royal Greenwich Observatory.
  6. Frogel, J. A., Persson, S. E., Aaronson, M., Becklin, E. E., Matthews, K., and Neugebauer, G. 1975b , Ap. J. (Letters), 195, L15.
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