00747nam0-22002531i-450-990001181290403321000118129FED01000118129(Aleph)000118129FED0100011812920000920d1986----km-y0itay50------baengSturn Liouville Operators and Applicationsby MARCHENKO V.A.Basel [etc.]Birkhauser1986Operator theory, advances and applications22Marchenko,Vladimir A.345521ITUNINARICAUNIMARCBK9900011812904033216-E-224904MA1MA1Sturn Liouville Operators and Applications342228UNINAING01