Bukaciński, Dariusz, Monika Bukacińska, and Ewelina Mastalerz. “The Human Pressure on the Middle Vistula River Wildlife: Thenumber and Distribution of People and Their Activity on the River During the Breeding Season of Birds”. Studia Ecologiae et Bioethicae 13, no. 4 (December 31, 2012): 143–178. Accessed March 29, 2024. https://czasopisma.uksw.edu.pl/index.php/seb/article/view/65.