(NpOLNOE SOBRANIE SO^INENIJ(B.s (Nt(B. 13,s (NpISXMA(B. 1849-1886s - (NuSPENSKIJ(B,(Ng(B. (Ni(B.s (NgLEB iWANOWI^s ((Nm(B.s (NiZD(B-(NWO an sssrs, 1951)