Authors
Fatemeh Babakordi
Department of Mathematics, Faculty of Science, Gonbad Kavous University, Gonbad Kavous, Iran
N. A. Taghi-Nezhad
Department of Mathematics, Faculty of Science, Gonbad Kavous University, Gonbad Kavous, Iran
© 2022 Fatemeh Babakordi, N. A. Taghi-Nezhad, published by Systems Research Institute Polish Academy of Sciences
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.