Boak, J., Dymek, R. and Gromet, L. (1983) “Petrology and rare earth element geochemistry of clastic metasedimentary rocks from the Isua supracrustal belt, West Greenland”, Rapport Grønlands Geologiske Undersøgelse. Copenhagen, Denmark, 112, pp. 23–33. doi: 10.34194/rapggu.v112.7810.