Authors
Stanisław Kowalczyk
Institute of Exact and Technical Sciences, Pomeranian University in Słupsk, Poland
Małgorzata Turowska
Institute of Exact and Technical Sciences, Pomeranian University in Słupsk, Poland
© 2025 Stanisław Kowalczyk, Małgorzata Turowska, published by Slovak Academy of Sciences, Mathematical Institute
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.