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Publicado en línea: 30 oct 2021
Páginas: 93 - 126
Recibido: 11 feb 2020
Aceptado: 02 ago 2021
DOI: https://doi.org/10.2478/udt-2021-0005
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© 2021 Ladislav Mišík et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Mišík, Ladislav
Department of Mathematics, Faculty of Sciences, University of OstravaOstrava
Department of Mathematics and Informatics, Faculty of Economics of J. Selye UniversityKomárno
Porubský, Štefan
The Czech Academy of Sciences, Institute of Computer SciencePrague
Strauch, Oto
Mathematical Institute, Slovak Academy of SciencesBratislava