Mittelholzer, A., Andreas Vischer, Wolf Maync, and Eigil Nielsen. 1950. “Geological Map of East Greenland, 74° - 75° N. Lat. And 20° - 23° W. Long. ”. Meddelelser Om Grønland 143 (1):Plate 6. https://tidsskrift.dk/meddrgroenland/article/view/165861.