Authors
Dana Piciu
Department of Mathematics, University of Craiova, Craiova, Romania
Christina Theresia Dan
Department of Mathematics, University of Craiova, Craiova, Romania
© 2021 Dana Piciu, Christina Theresia Dan, Anca Dina, published by Ovidius University of Constanta
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.