Selected Applications of Stimuli-Responsive Polymers: 4D Printing by the Fused Filament Fabrication Technology - Ahroni, Y.; Dresler, N.; Ulanov, A.; Ashkenazi, D.; Aviv, M.; Librus, M.; Stern, A. (Annals of “Dunarea de Jos” University of Galati. Fascicle XII, Welding Equipment and Technology, 2020)