Hab. Piotr Zima, Pawel Wielgat, Artur Cysewski. "THE STUDY OF WATER POLLUTION OF THE LOWER VISTULA RIVER BY PLASTIC PARTICLES." SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Water Resources. Forest, Marine and Ocean Ecosystems (2017): 729-736. https://doi.org/10.5593/sgem2017/31/s12.092