|Annu. Rev. Astron. Astrophys. 1989. 27:
Copyright © 1989 by Annual Reviews. All rights reserved
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Table of Contents
1 Visiting Astronomer, Canada-France-Hawaii Telescope, operated by the National Research Council of Canada, the Centre National de la Recherche Scientifique of France, and the University of Hawaii.
2 Alfred P. Sloan Fellow.