(NnELINEJNYE PO^TI PERIODI^ESKIE KOLEBANIQs - (NkRASNOSELXSKIJ(B,(Nm(B. (Na(B.s (NmARK aLEKSANDROWI^s; (NbURD(B,(Nw(B. (N{(B.s (NwLADIMIR {EPSELEWI^s; (NkOLESOW(B,(N`(B. (Ns(B.s (N`RIJ sERAFIMOWI^s ((Nm(B.s (NnAUKAs, 1970)
Keywords: (NdIFFERENCIALXNYE URAWNENIQ NELINEJNYEs -- (NrE[ENIEs; (NiNTEGRALXNYE URAWNENIQ(B, (NNELINEJNYEs -- (NrE[ENIEs; (NkOLEBANIQ NELINEJNYEs