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Robert Cichowicz
Faculty of Architecture, Civil and Environmental Engineering, Lodz University of Technology, al. Politechniki 6, 90-924 Łódź, Poland, phone +48 42 631 35 14, fax +48 42 631 35 16
Grzegorz Wielgosiński
Faculty of Process and Environmental Engineering, Lodz University of Technology, ul. Wólczańska 213, 90-924 Łódź, Poland, phone +48 42 631 37 95, fax +48 42 636 56 63