Case studies on the development of ecological industry 4.0 in partner countries as future teaching material - Barski, Robert; Barska, Anetta; Jędrzejczak, Janina; Śnihut, Janusz; Wyrwa, Joanna; Andrejovská, Alena, 1973-; Glova, Jozef, 1977-; Reiff-Stephan, Jörg (Technical University of Košice, 2024)