01025nam0-22003251i-450-99000047907040332120091202160810.00828537399000047907FED01000047907(Aleph)000047907FED0100004790720020821d1987----km-y0itay50------baenga-------001yyIII -Posed problems in the natural sciencesA. N. Tikhnov, A. V. Goncharskytranslated from the russian by M. BlochMoscowMIR1987344 p.ill.22 cmAdvances in science and technology in the USSRMathematics and mechanics seriesScienze naturali505Tikhnov,A. N.339956Gonscharsky,A. V.491622ITUNINARICAUNIMARCBK99000047907040332110 B II 352723 DEDINELDINELIII -Posed problems in the natural sciences332388UNINA