(NrADIOAKTIWNOSTX (B/s - (NzABORENKO(B, (NkALERIQ bORISOWNA(B.s ((NmOSKWA (B:s (NgOSTEHIZDAT(B,s, 1958)
(NzAKL(B.: (NS(B. 63-64s
Keywords: (NrADIOAKTIWNOSTXs