Bukaciński, Dariusz, Monika Bukacińska, and Arkadiusz Buczyński. 2020. “Wetland Birds of Middle Vistula River During Breeding Season: The Impact of Human Activities on the Distribution, Abundance and Richness of Species”. Studia Ecologiae Et Bioethicae 18 (5):335-48. https://doi.org/10.21697/seb.2020.18.5.30.