Mamica, Łukasz. “Dematerialised and Re-Dematerialised Economy – 3D Printing As a Key Technological and Environment-Friendly Innovation”. Economic and Environmental Studies 18, no. 1 (45) (November 20, 2020): 265–290. Accessed November 22, 2024. https://czasopisma.uni.opole.pl/index.php/ees/article/view/2613.