Authors
Piotr Nowakowski
piotr.nowakowski@dokt.p.lodz.pl
Institute of Mathematics, Łódź University of Technology, Łódź, POLAND
Institute of Mathematics, Czech Academy of Sciences, Prague, CZECH REPUBLIC
piotr.nowakowski@dokt.p.lodz.pl
© 2022 Piotr Nowakowski, published by Slovak Academy of Sciences, Mathematical Institute
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.