Andersen, M., and T. Pulvertaft. “Occurrences of Anorthositic Rocks in the Reworked Archaean Basement in the Umanak Area, Central West Greenland”. Rapport Grønlands Geologiske Undersøgelse, vol. 129, Dec. 1986, pp. 1-18, doi:10.34194/rapggu.v129.7933.