Sønderholm, M, and P.H Due. 1985. “Lower and Middle Ordovician Platform Carbonate Lithostratigraphy of Warming Land, Wulff Land and Nares Land, North Greenland”. Rapport Grønlands Geologiske Undersøgelse 126 (December). Copenhagen, Denmark:31-46. https://doi.org/10.34194/rapggu.v126.7910.