WINCZEK, Katarzyna, and Jerzy WINCZEK. “Techniques and Materials in Artistic Creativity Versus Protection of the Environment and Ecology”. Journal of Education, Technology and Computer Science 12, no. 2 (June 30, 2015): 130–135. Accessed July 22, 2024. https://journals.ur.edu.pl/jetacomps/article/view/6504.