00744nam0-22002531i-450-990001269770403321000126977FED01000126977(Aleph)000126977FED0100012697720000920d1984----km-y0itay50------baengDifferential equations flow invariance and applicationsdi PavelBoston [etc.]Pitman1984Research notes in mathematics, 113Pavel,Nicolae H.56118ITUNINARICAUNIMARCBK990001269770403321C-2-(113811MA1MA1Differential equations flow invariance and applications380124UNINAING01