(NsLU^AJNYE PERMANENTY (B/s - (NkOROL@K(B, (NwLADIMIR sEMENOWI^s; (NbOROWSKIH(B, (N`RIJ wASILXEWI^s; (NaKADEMIQ NAUK uKRAINYs; (NiNSTITUT MATEMATIKI an uKRAINYs ((NkIEW (B:s (Nb(B. (NI(B.,s, 1993)
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Keywords: (NpRIKLADNAQ MATEMATIKAs; (NkOMBINATORIKA (B((NMAT(B.)s; (NsLU^AJNYE WELI^INY (B- (NsUMMIROWANIEs