1. Poznan University of Technology, Institute of Environmental Engineering, ul. Piotrowo 3a, 60-695 Poznan, Poland
2. Zielona Góra University of Technology, Institute of Environmental Engineering, ul. Podgórna 50, 65-246 Zielona Góra, Poland
3. Czestochowa University of Technology, Institute of Environmental Engineering, ul. Dabrowskiego 69, 42-200 Czestochowa, Poland