Authors
H. Özlem Güney
Dicle University, Faculty of Science, Department of Mathematics, Diyarbakır, Turkey
Shigeyoshi Owa
Honorary Professor “1 Decembrie 1918” University Alba Iulia, Romania
© 2020 H. Özlem Güney, Shigeyoshi Owa, published by Sapientia Hungarian University of Transylvania
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.