(NaLEKSEJ gRIGORXEWI^ dOQRENKO(B, 1874-1958s - (NoRLOWSKIJ(B,(Nn(B. (Nw(B.s (NnIKOLAJ wASILXEWI^s; (Nan sssrs ((Nm(B.s (NnAUKAs, 1980)
Keywords: (NdOQRENKO a(B. (Ng(B.s; (NaGRONOMIQ W sssrs -- (NiSTORIQs