(NrAZDEL(B: (NuPRUGIE WOLNY W SLOISTYH TWERDYH SREDAH (B/s - (NqM]IKOW(B, (NwALERIJ sERGEEWI^s; (NbAUKOW(B, (N`(B. (Nn(B.s; (NnAZAROWA(B, (Nl(B. (Ni(B.s; (NrVEWSKIJ(B, (NwLADIMIR wASILXEWI^s; (NmOSKOWSKIJ GORNYJ INSTITUTs ((NmOSKWA (B:s (Nb(B. (NI(B,s, 1973)
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Keywords: (NgEOAKUSTIKAs