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\RBibitem{Tim13} \by �.~�.~�� \paper �� \jour ��. ��. \yr 2013 \vol 25 \issue 4 \pages 3--12 \mathnet{http://mi.mathnet.ru/dm1252} \crossref{https://doi.org/10.4213/dm1252} \mathscinet{http://mathscinet.ams.org/mathscinet-getitem?mr=3222857} \elib{https://elibrary.ru/item.asp?id=21276238} \transl \jour Discrete Math. Appl. \yr 2013 \vol 23 \issue 5-6 \pages 491--501 \crossref{https://doi.org/10.1515/dma-2013-0034} \scopus{https://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-84902519191}

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