Gravitational lenses : proceedings of a conference held in Hamburg, Germany, 9-13 September 1991 - Kayser, R. (Rainer), 1957-; Schramm, T. (Thomas), 1956-; Nieser, L. (Lars), 1965- (Berlin : Springer-Verlag, 1992)
Includes bibliographical references and indexes.
Keywords: Gravitational lenses -- Congresses; Astrophysics -- Congresses