(NmATEMATIZACIQ NAU^NOGO ZNANIQ (B/s - (NrUZAWIN(B, (NgEORGIJ iWANOWI^s ((NmOSKWA (B:s (Nb(B. (NI(B.,s, 1972)
Keywords: (NmATEMATIZACIQ NAUK (B- (NsBORNIKIs