(NaSIMPTOTI^ESKIE METODY W TEORII NELINEJNYH KOLEBANIJ (B/s - (NbOGOL@BOW(B, (NnIKOLAJ nIKOLAEWI^s; (NmITROPOLXSKIJ(B, (N`RIJ aLEKSEEWI^s ((NmOSKWA (B:s (NnAUKA(B. (NgL(B. (NRED(B. (NFIZ(B.-(NMAT(B. (NLIT(B.,s, 1974)
Keywords: (NfIZIKAs