00687nam0-22002411i-450-990001129910403321000112991FED01000112991(Aleph)000112991FED0100011299120000920d1970----km-y0itay50------baengIntroduction to the theory of stabilityby Barbashin.GroningenWolters-Noordhoff1970Barbashin,Evgenii Alekseevich42957ITUNINARICAUNIMARCBK99000112991040332132-I-2811716MA1MA1INTRODUCTION TO THE THEORY OF STABILITY318638UNINAING01