(NpO^WY SELXSKOHOZQJSTWENNYH UGODIJ sssr (B/s - (NfEDORIN(B, (N`RIJ wASILXEWI^s; (NsOTNIKOW(B, (NwLADIMIR pETROWI^s; (NeGORENKOW(B, (NlEONID iWANOWI^s ((Nm(B. :s (NkOLOS(B,s, 1981)
Keywords: (NpO^WOWEDENIEs -- (Nsssrs