title: Physical cosmology. Introduction to papers presented at a colloquium "Physical Cosmology," March 27-28, 1992, National Academy of Sciences, Irvine, CA.
authors.affiliation: Deparment of Astronomy and Astrophysics, University of Chicago, Chicago, IL 60637, USA.
authors.forename: D N
authors.initials: DN
authors.lastname: Schramm