Makhnei, O. V.; Pylypiv, V. M.; Zatorskii, R. A. \(m\)-submultisets and \(m\)-permutations of multisets elements. (English) Zbl 1500.05001 Carpathian Math. Publ. 13, No. 1, 240-258 (2021). MSC: 05A05 PDFBibTeX XMLCite \textit{O. V. Makhnei} et al., Carpathian Math. Publ. 13, No. 1, 240--258 (2021; Zbl 1500.05001) Full Text: DOI
Vasylyshyn, P. B.; Vlasiĭ, O. D.; Goĭ, T. P.; Zagorodnyuk, A. V.; Zators’kyĭ, R. A.; Kazmerchuk, A. I.; Kopach, M. I.; Mazurenko, V. V.; Makhneĭ, O. V.; Malyts’ka, G. P.; Nykyforchyn, O. R.; Osypchuk, M. M.; Pylypiv, V. M.; Savka, I. Ya.; Symotyuk, M. M.; Filevych, P. V.; Sharyn, S. V. Bogdan Yosypovych Ptashnyk (obituary). (Ukrainian) Zbl 1372.01067 Carpathian Math. Publ. 9, No. 1, 104-106 (2017). MSC: 01A70 PDFBibTeX XMLCite \textit{P. B. Vasylyshyn} et al., Carpathian Math. Publ. 9, No. 1, 104--106 (2017; Zbl 1372.01067) Full Text: DOI Link