00795nam0-22002891i-450-990001098420403321000109842FED01000109842(Aleph)000109842FED01000109842--------d--------km-y0itay50------baeng<<The >>Exploration of SpaceA Symposium on Space Physics April 29-30, 1959edited by Robert JastrowNew YorkMacmillan1960AstronomiaAstrofisicaCosmologia520523Jastrow,Robert48001ITUNINARICAUNIMARCBK99000109842040332119-022.00117167FI1FI1Exploration of Space335353UNINA