Połeć M, Aleksander-Kwaterczak U, Wątor K, Kmiecik E. The occurrence of microplastics in freshwater systems – preliminary results from Krakow (Poland). geol [Internet]. 2018Dec.6 [cited 2024May5];44(4):391. Available from: https://journals.agh.edu.pl/geol/article/view/3005