Mittelholzer, A., et al. “Geological Map of East Greenland, 74° - 75° N. Lat. And 20° - 23° W. Long. ”. Meddelelser Om Grønland, vol. 143, no. 1, May 1950, p. Plate 6, https://tidsskrift.dk/meddrgroenland/article/view/165861.