(Nu^EBNO(B-(NOPYTNAQ RABOTA NA PRI[KOLXNOM U^ASTKEs - (NpAPORKOW(B,(Nm(B. (Na(B.s (NmIHAIL aLEKSEEWI^s; (NkLINKOWSKAQ(B,(Nn(B. (Ni(B.s (NnINA iWANOWNAs; (NmILOWANOWA(B,(Ne(B. (Ns(B.s (NeLENA sEMENOWNAs ((Nm(B.s (NpROSWE]ENIEs, 1974)
Keywords: (NpRI[KOLXNYE U^ASTKI U^EBNO(B-(NOPYTNYEs; (NrASTENIEWODSTWOs -- (NoPYTY U^EBNYEs; (NbIOLOGIQs -- (NoPYTY U^EBNYEs