Authors
Piotr Gorzelanczyk
piotr.gorzelanczyk@puss.pila.pl
Stanislaw Staszic University of Applied Sciences in Pila, Pila, Poland
piotr.gorzelanczyk@puss.pila.pl
© 2021 Piotr Gorzelanczyk, published by Institute of Technology and Business in České Budějovice
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.