Ling Chang, Xu Zhang, Anurag Kulshrestha, Serkan Girgin, Alfred Stein, University of Twente, Netherlands; Jose Manuel Delgado Blasco, Angie Catalina Carrillo Chappe, Andrea Cavallini, Marco Uccelli, RHEA System S.p.A., Italy; Milan Lazecky, Andy Hooper, University of Leeds, United Kingdom; Wojciech Witkowski, Magdalena Lucka, Artur Guzy, AGH University of Krakow, Poland