(NsTRUKTURA PO^WY KAK FAKTOR PLODORODIQ (B/ s - (NaLOW(B, (NaLEKSANDR sAMOJLOWI^(B. s ((NmOSKWA (B: s (NiZD(B-(NWO m(B-(NWA SEL(B. (NHOZ(B-(NWA rsfsr(B, s, 1960)
Keywords: (NpO^WY (B- (NsTRUKTURA s; (NpLODORODIE PO^WYs