Authors
Dariusz Więcław
AGH University of Science and Technology, Faculty of Geology, Geophysics and Environmental Protection, Krakow, Poland
Maria Sadlik
Marshal Office of the Małopolska Region, Kraków, Poland
© 2019 Dariusz Więcław, Maria Sadlik, published by West Pomeranian University of Technology, Szczecin
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.