01032nam--2200325---450-99000325364020331620090525123639.0000325364USA01000325364(ALEPH)000325364USA0100032536420090525d1979----km-y0itay50------baengSUy---||||001yyNumerical-analytic methods of investigating periodic solutionsA. M. Samoilenko, N. I. Rontotranslated from the russian by Vladimir ShokurovMoscowMir publishers1979183 p.20 cmEquazioni differenziali515.355SAMOILENKO,A. M.26236RONTO,N. I.604395ITsalbcISBD990003253640203316515.355 SAM21915/CBS515.35500221759BKSCIRSIAV79020090525USA011236Numerical-analytic methods of investigating periodic solutions1119671UNISA