00875nam0-22003251i-450-99000096212040332120080312112419.0000096212FED01000096212(Aleph)000096212FED0100009621220001205d1964----km-y0itay50------baengOptical MasersGeorge BirnbaumNew YorkAcademic Press1964Advances in Electronics and Electron Physics2LaserElettronica quantistica537.2Birnbaum,George235ITUNINARICAUNIMARCBK99000096212040332127A-0484229FI127A-048.00115904FI110 B III 174570DINELFI1DINELOptical masers48087UNINA