(NwARIACIONNO(B-(NRAZNOSTNYE METODY W MATEMATI^ESKOJ FIZIKE (B:s (NtRUDY (BII (NwSESO@ZNOGO SEMINARA (B: (NsBORNIK NAU^NYH TRUDOW (B/s - (NmAR^UK(B, (Ng(B.(Ni(B.s ((NnOWOSIBIRSK (B:s (Nb(B. (NI(B.,s, 1976)
Keywords: (NmATEMATI^ESKAQ FIZIKAs