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Czesław Rudowicz
Institute of Physics, West Pomeranian University of Technology, 17 Piastów Ave., 70-310 Szczecin, Poland; Since 1 March 2015 Visiting Professor, Faculty of Chemistry, Adam Mickiewicz University, 89B Umultowska Str., 61-614 Poznań, Poland
Mirosław Karbowiak
Faculty of Chemistry, University of Wrocław, 14 F. Joliot-Curie Str., 50-383 Wrocław, Poland