Moran, J. M. Hewitt, J. N. Lo, K. Y.

Gravitational lenses : proceedings of a conference held at the Massachusetts institute of technology Cambridge, Massachusetts June 20, 1988 - Berlin Springer-Verlag 1989 - 238 - Lecture notes in physics ; 00330 .

3540510613

53 LNP
The Institute of Mathematical Sciences, Chennai, India

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