Dalhoff, Finn, and Lars Stemmerik. “Depositional History of the Fluvial Lower Carboniferous Sortebakker Formation, Wandel Sea Basin, Eastern North Greenland”. Geology of Greenland Survey Bulletin 187 (October 20, 2000): 65–77. Accessed May 18, 2024. https://geusjournals.org/index.php/ggub/article/view/6321.