Kalsbeek, F. 1970. The petrography and origin of gneisses, amphibolites and migmatites in the Qasigialik area, South-West Greenland. Bulletin Grønlands Geologiske Undersøgelse. 83, (Jan. 1970), 1–70. DOI:https://doi.org/10.34194/bullggu.v83.6623.