(NlESOPOSADO^NYJ MATERIAL (B"(NbRIKA(B" /s - (NbU[(B, (Nm(B.(Nk(B.s; (NwARSLAWANS(B, (Nl(B.(Nq(B.s; (NkARINX[(B, (Nz(B.(No(B.s; (NlATWIJSKIJ NAU^NO(B-(NISSLEDOWATELXSKIJ INSTITUT LESOHOZQJSTWENNYH PROBLEMs ((NrIGA (B:s (NzINATNE(B,s, 1974)
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Keywords: (NpRAKTI^ESKOE LESORAZWEDENIEs