00804nam0-22003011i-450-990000959060403321000095906FED01000095906(Aleph)000095906FED0100009590620000920d1970----km-y0itay50------baengVistas in AstronomyThe Henry Norris Russell Memorial Volumeedited by Arthur BeerOxford [etc.]Pergamon Press1970AstronomiaAstrofisicaCosmologia520523Beer,Arthur44748ITUNINARICAUNIMARCBK99000095906040332119-039.0117350FI1FI1Vistas in Astronomy358381UNINAING01