Authors
Marek Karaś
AGH University of Science and Technology, Faculty of Applied Mathematics, Kraków, Poland
Anna Serwatka
Institute of Mathematics, Faculty of Mathematics and Computer Science, Jagiellonian University in Kraków, Kraków, Poland
© 2018 Marek Karaś, Anna Serwatka, published by Pedagogical University of Cracow
This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 License.