Mechatronics 2019 : Recent Advances Towards Industry 4.0 / by International Conference Mechatronics (2019 : Warsaw, Poland) 632465, Szewczyk, Roman, editor 226591, Krejsa, Jiri, editor 632469, Nowicki, Michal, editor 632470, Ostaszewska-Lizewska, Anna, editor 632471