Authors
Zsolt Szilágyi
szilagyi.zsolt@math.ubbcluj.ro
Babeş-Bolyai University, Faculty of Mathematics and Computer Science, Cluj-Napoca, Romania
szilagyi.zsolt@math.ubbcluj.ro
© 2023 Zsolt Szilágyi, published by Sapientia Hungarian University of Transylvania
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.