00687nam0-22002411i-450-990001129930403321000112993FED01000112993(Aleph)000112993FED0100011299320000920d1970----km-y0itay50------baengIntroduction to the theory of stabilityby Barbashin.GroningenWolters-Noordhoff1970Barbashin,Evgenii Alekseevich42957ITUNINARICAUNIMARCBK99000112993040332132-I-2911715MA1MA1INTRODUCTION TO THE THEORY OF STABILITY318638UNINAING01