00800nam0-22002771i-450-990002547990403321000254799FED01000254799(Aleph)000254799FED0100025479920000920d--------km-y0itay50------baENGDifferential EquationsGeometric TheorySolomon Lefschetz.New YorkIntersciences.d .x, 364 p.24 cmEquazioni differenziali ed integrali, Equazioni differenziali ordinarie519Lefschetz,Solomon12523ITUNINARICAUNIMARCBK990002547990403321MX-A-67014190MASMASDifferential equations82414UNINAING01