Authors
Katarzyna ROZPONDEK
PhD; Faculty of Infrastructure and Environment, Częstochowa, Poland
Rafał ROZPONDEK
PhD; Faculty of Infrastructure and Environment, Częstochowa, Poland
© 2019 Katarzyna ROZPONDEK, Rafał ROZPONDEK, published by Silesian University of Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.