(NmATEMATI^ESKAQ TEORIQ OBU^AEMYH OPOZNA@]IH SISTEM (B/s - (NfOMIN(B, (NwLADIMIR nIKOLAEWI^s; (NlENINGRADSKIJ GOSUDARSTWENNYJ UNIWERSITET IM(B. (Na(B.(Na(B. (NvDANOWAs ((NlENINGRAD (B:s (NiZD(B-(NWO lENINGR(B. (NUN(B-(NTA(B,s, 1976)
Keywords: (NoPOZNA@]IE SISTEMY (B- (NMATEMATI^ESKAQ TEORIQs