00730nam0-22002531i-450-990001245070403321000124507FED01000124507(Aleph)000124507FED0100012450720000920d1964----km-y0itay50------baengQualitative Methods in Mathematical AnalysisBY EL'SGOL'C L.E.s.l.American Mathematical Society1964VOL.12 ̜Elsgolts,Lev Ernestovic346159ITUNINARICAUNIMARCBK990001245070403321C-29-(1210179MA1MA1Qualitative Methods in Mathematical Analysis381526UNINAING01