00710nam0-22002651i-450-99000083142040332120001010000083142FED01000083142(Aleph)000083142FED0100008314220001010d--------km-y0itay50------baitay-------001yyVariational methods for eingenvalue problemss.l.University PressGould,S.H.30981ITUNINARICAUNIMARCBK99000083142040332102 66 D 152447FINBNFINBNVariational methods for eingenvalue problems348279UNINAING01