(NdIFFERENCIALXNYE URAWNENIQ MATEMATI^ESKOJ FIZIKI I IH PRILOVENIQ (B/s - (NsALAHITDINOW(B, (NmAHMUD sALAHITDINOWI^s; (NiNSTITUT MATEMATIKI IM(B. (Nw(B.(Ni(B. (NrOMANOWSKOGOs ((NtA[KENT (B:s (NfAN(B,s, 1989)
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Keywords: (NdIFFERENCIALXNYE URAWNENIQ (B- (NrE[ENIEs; (NmATEMATI^ESKAQ FIZIKA (B- (NuRAWNENIQs