(NfIZIKA TWERDOGO TELA (B:s (Nu^EBNOE POSOBIE (B/s - (NvDANOW(B, (NgERMAN sTEPANOWI^(B.s ((NmOSKWA (B:s (NiZD(B-(NWO mOSK(B. (NUN(B-(NTA(B,s, 1962)
(NbIBLIOGR(B.: (NS(B. 464 - 478s
Keywords: (NfIZIKAs