Escher, A., Escher, J. and Watterson, J. 1970. The Nagssugtoqidian boundary and the deformation of the Kângamiut dyke swarm in the Søndre Strømfjord area. Rapport Grønlands Geologiske Undersøgelse. 28, (Jan. 1970), 21–23. DOI:https://doi.org/10.34194/rapggu.v28.7226.