1. Faculty of Geology, Geophysics and Environmental Protection, AGH University of Science and Technology, 30 Mickiewicz Ave, 30-059 Cracow, Poland
2. Faculty of Earth Sciences, University of Silesia in Katowice, 60 Będzińska St., 41-200 Sosnowiec, Poland
3. PPUH ZAMECH Zygmunt Nocoń, 171 Staszica St., 41-250 Czeladź, Poland
4. Department of Product Technology and Ecology, College of Management and Quality Sciences, Cracow University of Economics, Rakowicka 27 St., 31-510 Cracow, Poland
5. Instytut Zrównoważonej Energii “Miękinia” Sp. z o.o., Miekinia 380, 32-065 Krzeszowice, Poland
6. Mineral and Energy Economic Research Institute, Polish Academy of Sciences, 7A Wybickiego St., 31-261 Cracow, Poland