00686nam0-22002411i-450-990001129890403321000112989FED01000112989(Aleph)000112989FED0100011298920000920d1970----km-y0itay50------baengIntroduction to the theory of stabilityby BarbashinWoltersGronigenNoordhoff1970Barbashin,Evgenii Alekseevich42957ITUNINARICAUNIMARCBK99000112989040332132-I-2711388MA1MA1INTRODUCTION TO THE THEORY OF STABILITY318638UNINAING01