(NpROBLEMA (BCETI :s ((NsWQZX S WNEZEMNYMI CIWILIZACIQMI(B) /s - (NkAPLAN(B, (Ns(B.(Na(B.s ((NmOSKWA (B:s (NmIR(B,s, 1975)
Keywords: (NaSTROFIZIKAs; K(NOSMI^ESKIE ISSLEDOWANIQs