(NpAFNUTIJ lXWOWI^ ~EBY[EW (B:s 1821 - 1894 - (NpRUDNIKOW(B, (NwASILIJ eFIMOWI^s; (NoVIGOW(B, (Ne(B.(Np(B.s; (NaKADEMIQ NAUK sssrs ((NlENINGRAD (B:s (NnAUKA(B. (NlENINGR(B. (NOTD(B-(NNIE(B,s, 1976)
Keywords: (N~EBY[EW(B, (NpAFNUTIJ lXWOWI^s; (NmATEMATIKAs