(NpRINCIP SWEDENIQ DLQ RAZNOSTNYH URAWNENIJ (B/s - (NmARDANOW(B, (NiLXGAM dVUMAIL OGLYs; (NwALEEW(B, (NkIM gALQNOWI^s; (NiNSTITUT MATEMATIKI I MEHANIKI an aZssrs ((NbAKU (B:s (N|LM(B,s, 1991)
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Keywords: (NdIFFERENCIALXNYE URAWNENIQ RAZNOSTNYE (B- (NuSTOJ^IWOSTXs