Ninth Texas Symposium on Relativictic Astrophysics - Texas Symposium on Relativistic Astrophysics 1978 : Munich).; Perry, Judith J.; Ehlers, J. (Jurgen), 1929-; Walker, Martin (New York, N.Y : New York Academy of Sciences, 1980)
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Keywords: Astrophysics -- Congresses; General relativity (Physics) -- Congresses