Authors
Urszula Kołodziejczyk
U.Kolodziejczyk@iis.uz.zgora.pl
University of Zielona Góra, Faculty of Civil and Environmental Engineering, Zielona Góra
U.Kolodziejczyk@iis.uz.zgora.pl
© 2017 Urszula Kołodziejczyk, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.