00630nam0-22002411i-450-990001131870403321000113187FED01000113187(Aleph)000113187FED0100011318720000920d1938----km-y0itay50------baengTheorie des electronsby BeckerParisAlcan1938Becker,Richard<1887-1955>44735ITUNINARICAUNIMARCBK990001131870403321223-E-2902441MA1MA1Theorie des electrons345486UNINAING01