CORELA: Collaborative Learning Platform With Integrated Remote Laboratory Environment in VET - Dusan Gleich; Bojan Gergic; Sofija Temkova; Dimitar Gjorgjiev; Zivko Kokolanski; Tomislav Shuminoski; Srecko Simovic; Matic Podobnik; Zlatko Ruscic; Marijan Pavosevic (International Conference on Systems, Signals and Image Processing, IWSSIP 2019, Osijek, Croatia, June 5-7, 2019, 2019)