Authors
Marek Hawryluk
Wroclaw University of Science and Technology, Wroclaw, Poland
Jan Marzec
Wroclaw University of Science and Technology, Wroclaw, Poland
Röben Polska, Środa Śląska, Poland
Marzena Lachowicz
Wroclaw University of Science and Technology, Wroclaw, Poland
Piotr Makuła
Wroclaw University of Science and Technology, Wroclaw, Poland
Kamila Nowak
Wroclaw University of Science and Technology, Wroclaw, Poland