(Nu^ENYE(B-(NPOPULQRIZATORY NAUKI (B/s - (NlI[EWSKIJ(B, (NwOLODAR pETROWI^s ((NmOSKWA (B:s (NzNANIE(B,s, 1987)
Keywords: (NnAUKA(B. (NnAUKOWEDENIEs