1. Mineral and Energy Economy Research Institute, Polish Academy of Sciences, Kraków, Poland
2. Institute of Environmental Protection – National Research Institute, Warszawa, Poland
3. Mineral and Energy Economy Research Institute, Polish Academy of Sciences, Kraków, Poland; AGH University of Science and Technology, Kraków, Poland
4. Mineral and Energy Economy Research Institute, Polish Academy of Sciences, Kraków, Poland; AGH Universityof Science and Technology, Kraków, Poland