1. Institute of Geonics of the Czech Academy Sciences Ostrava‐Poruba Czech Republic
2. Institute of Environmental Technology CEET VSB‐Technical University of Ostrava Ostrava‐Poruba Czech Republic
3. Department of Chemistry VSB‐Technical University of Ostrava Ostrava‐Poruba Czech Republic
4. Jerzy Haber Institute of Catalysis and Surface Chemistry Polish Academy of Sciences Krakow Poland
5. Institute of Geotechnics of the Slovak Academy of Sciences Kosice Slovak Republic