Gotowski, Rafał, Krzysztof Parzych, Wiktoria Karczewska, and Aleksandra Gotowska. 2018. “The Upper Notec and Goplo Lake Sailing Trail and Place of Water Tourism”. Journal of Education, Health and Sport 8 (6):418-26. https://apcz.umk.pl/JEHS/article/view/6167.