00758nam0-22002531i-450-990001190820403321000119082FED01000119082(Aleph)000119082FED0100011908220000920d1976----km-y0itay50------baengMathematical Cosmology and Extragalactic Astronomyby SEGAL Irving Ezra.New York [etc.]Academic Press1976Pure and applied mathematics68Segal,Irving Ezra47280ITUNINARICAUNIMARCBK990001190820403321204-H-4420373MA1MA1Mathematical Cosmology and Extragalactic Astronomy341238UNINAING01