Escher, J.C, and O Stecher. 1978. “Precambrian Geology of the Upernavik - Red Head Region (72°15’–75°15’N), Northern West Greenland”. Rapport Grønlands Geologiske Undersøgelse 90 (December). Copenhagen, Denmark:23-26. https://doi.org/10.34194/rapggu.v90.7582.