00843nam0-22003011i-450-99000088506040332120001010000088506FED01000088506(Aleph)000088506FED0100008850620001010d--------km-y0itay50------baitay-------001yyApproximate Methods of Higher AnalysisNew YorkNoordhoff L.T.D.1964.p.670ill.cm 23MatematicaKantorovich,Leonid Vital'evich<1912- >102715Krylov,Vladimir IvanovichITUNINARICAUNIMARCBK99000088506040332103 M.0,191599IINTCIINTCAPPROXIMATE METHODS OF HIGHER ANALYSIS318650UNINAING01