00805nam0-22002891i-450-990001142440403321000114244FED01000114244(Aleph)000114244FED0100011424420000920d1980----km-y0itay50------baengDifferential equationsintroduction and qualitative theoryby CroninNew York [etc.]Marcel Dekker1980Pure and applied mathematics54Equazioni differenzialiCronin,Jane41632ITUNINARICAUNIMARCBK9900011424404033214-I-1220588bisMA1MA134-0134A30Differential equations344092UNINAING01