1. Institute of Chemistry, University of Miskolc, Miskolc-Egyetemváros 3515, Hungary
2. Higher Education and Industrial Cooperation Centre, University of Miskolc, Miskolc-Egyetemváros 3515, Hungary
3. Ferenc Rakoczi II Transcarpathian Hungarian College of Higher Education, Beregszász, Transcarpathia, 90200, Ukraine
4. Department of Physical Chemistry, Faculty of Chemistry, University of Lodz, Lodz, 90-236, Poland