Połeć, Marzena, Urszula Aleksander-Kwaterczak, Katarzyna Wątor, and Ewa Kmiecik. “The Occurrence of Microplastics in Freshwater Systems – Preliminary Results from Krakow (Poland)”. Geology, Geophysics and Environment 44, no. 4 (December 6, 2018): 391. Accessed November 21, 2024. https://ggae.agh.edu.pl/index.php/geol/article/view/3005.