Choiński, Adam, Andrzej Muszyński, and Mariusz Ptak. “Reconstruction of the Primary Bottom of a Unique Crater Lake in the ‘Meteoryt Morasko Reserve’ (Poland)”. Bulletin of Geography. Physical Geography Series, no. 17 (December 31, 2019): 5–16. Accessed May 20, 2024. https://apcz.umk.pl/BOGPGS/article/view/28774.