Authors
Paweł Grudziński
West Pomeranian University of Technology, Szczecin, Poland
Konrad Konowalski
West Pomeranian University of Technology, Szczecin, Poland
© 2020 Paweł Grudziński, Konrad Konowalski, published by Gdansk University of Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.