00675nam0-22002411i-450-990001299970403321000129997FED01000129997(Aleph)000129997FED0100012999720000920d--------km-y0itay50------baengForced oscillations in nonlinear systemsby HAYASHI C.OsakaNIPPON PRINTING AND PUB. CO.Hayashi,Chihiro21407ITUNINARICAUNIMARCBK99000129997040332132-H-191671MA1MA1Forced oscillations in nonlinear systems384052UNINAING01