Koch, Lauge. “Report on the Expeditions to Central East Greenland 1926-39 Conducted by Lauge Koch. Part I. Notes on Some Topographical and Geological Maps of East Greenland”. Meddelelser Om Grønland, vol. 143, no. 1, May 1950, p. 11 pp., https://tidsskrift.dk/meddrgroenland/article/view/165889.