Mineral and Energy Economy Research Institute (MEERI PAS)of the Polish Academy of Sciences, Wybickiego 7, 31-261 Kraków, Poland Coordinato Dr. Magdalena Wdowin e-mail: wdowin@meeri.pl
Lublin University of Technology, Nadbystrzycka 40, 20-618 Lublin Leader Prof. Wojciech Franus e-mail: w.franus@pollub.pl
University of Nottingham, Faculty of Engineering, University Park, Nottingham NG7 2RD, UK Prof. Colin E. Snape e-mail: Colin.Snape@nottingham.ac.uk