00789nam0-22002891i-450-990000026950403321000002695FED01000002695(Aleph)000002695FED0100000269520011111d--------km-y0itay50------baitay-------001yyElements maser theoryArthur A. Vuylsteke.PrincetonVan Nostrand company1960XIII, 362 p.ill.24 cmAmplificatori Maser621.381Vuylsteke,Arthur A.2079ITUNINARICAUNIMARCBK99000002695040332113 C 05 0424096FINBCFINBCElements maser theory107242UNINAING01