(NmETODY PRIKLADNOJ MATEMATIKI I MATEMATI^ESKOJ FIZIKI (B:s (NsBORNIK NAU^NYH TRUDOW (B/s - (NbABE(B, (Ng(B.(Nd(B.s ((NqKUTSK (B:s (Nan sssr(B. (NsIB(B. (NOTD(B-(NNIE(B. (NqKUTSKIJ FIL(B. ,s, 1987)
Keywords: (NmATEMATIKAs