Stecher, O., and N. Henriksen. “Sm-Nd Model Age of an Early Proterozoic Gabbro-Anorthosite from the Caledonian Fold Belt in North-East Greenland”. Rapport Grønlands Geologiske Undersøgelse, vol. 162, Jan. 1994, pp. 135-7, doi:10.34194/rapggu.v162.8255.