Sidgren, A.-S. ., L. . Page, and A. A. . Garde. “New Hornblende and Muscovite 40Ar/39Ar Cooling Ages in the Central Rinkian Fold Belt, West Greenland”. GEUS Bulletin, vol. 11, Dec. 2006, pp. 115-24, doi:10.34194/geusb.v11.4920.