(NpOLUPROWODNIKI (B:s (Nu^EBNOE POSOBIE (B/s - (NiWANOW(B, (Ng(B.(Na(B.s; (NlUVKOWSKIJ(B, (Nw(B.(Ng(B.s ((NlENINGRAD (B:s (Nb(B. (NI(B.,s, 1975)
Keywords: (NfIZIKAs; (NpOLUPROWODNIKIs