(NaKU[ERSTWO (B:s (NrUKOWODSTWO DLQ WRA^EJ I STUDENTOW (B/s - (NpET^ENKO(B, (Na(B.(Ni(B.s ((NkIEW(B:s (NgOSMEDIZDAT ussr(B,s, 1954)
Keywords: (NaKU[ERSTWOs