Bridgwater, D. 1970. “Observations on the Precambrian Rocks of Scandinavia and Labrador and Their Implications for the Interpretation of the Precambrian of Greenland”. Rapport Grønlands Geologiske Undersøgelse 28 (January). Copenhagen, Denmark:43-47. https://doi.org/10.34194/rapggu.v28.7236.