(NoB]AQ ALGEBRA I DISKRETNAQ GEOMETRIQ (B:s (NmATEMATI^ESKIE NAUKI (B: (NmEVWUZOWSKIJ SBORNIK (B/s - (N}ERBAKOW(B, (NbORIS aLEKSEEWI^s; (NkI[INEWSKIJ GOSUDARSTWENNYJ UNIWERSITET IM(B. (Nw(B.(Ni(B. (NlENINAs ((NkI[INEW (B:s (N{TIINCA(B,s, 1980)
Keywords: (NaLGEBRAs; (NdISKRETNAQ MATEMATIKAs