(NmATEMATI^ESKOE OBESPE^ENIE |wm (B/s - (NlAWINSKIJ(B, (NgLEB wLADIMIROWI^s; (NkIEWSKIJ INSTITUT NARODNOGO HOZQJSTWA IM(B. (Nd(B.(Ns(B. (NkOROT^ENKOs ((NkIEW (B:s (NiZD(B-(NWO kIEWSKOGO IN(B-(NTA NAR(B. (NHOZ(B.,s, 1973)
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Keywords: (N|wms