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. 112, (Dec. 1983), 23–33. DOI:https://doi.org/10.34194/rapggu.v112.7810.