Derech, V., Department of Mathematics, Vinnytsia National Technical University, Vinnytsia, Ukraine
Desiateryk, O., Faculty of Mechanics and Mathematics, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
Didurik, N., State University Dimitrie Cantemir, Chisinau Moldova
Dmytruk, A., Ivan Franko National University of Lviv, Lviv, Ukraine
Domsha, O., Lviv Regional Institute for Public Administration of the National Academy for Public Administration under the President of Ukraine, Lviv, Ukraine
Drozd, Yu., Institute of Mathematics, National Academy of Sciences of Ukraine, Kyiv, Ukraine
Drushlyak, M., Department of Mathematics, Makarenko Sumy State Pedagogical University, Sumy, Ukraine
Dudko, A., Institute of Mathematics, Polish Academy of Science, Warsaw, Poland
Dzhaliuk, N., Department of Algebra, Pidstryhach Institute for Applied Problems of Mechanics and Mathematics of the NAS of Ukraine, L’viv, Ukraine

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