(NsBORNIK ZADA^ PO GEOMETRII (B:s (Nu^EBNOE POSOBIE (B/s - (NaTANASQN(B, (NlEWON sERGEEWI^s; (NaTANASQN(B, (NwERA aLEKSEEWNAs ((NmOSKWA (B:s (NpROSWE]ENIE(B,s, 1973)
(N~(B. 1 (1973, 256 (NS(B.)s (N~(B. 2 (1975, 176 (NS(B.)s
Keywords: (NgEOMETRIQs