1. Department of Engineering and Chemical Technology, Cracow University of Technology, 24 Warszawska St., 31-155 Cracow, Poland
2. Research Center for Cultivar Testing, A5 No. 9 St., 32-086 Węgrzce, Poland
3. Department of Civil Engineering, Cracow University of Technology, 24 Warszawska St., 31-155 Cracow, Poland