Thomassen, B. ., J. . Kyed, A. . Steenfelt, and T. . Tukiainen. “Upernavik 98: Reconnaissance Mineral Exploration in North-West Greenland”. Geology of Greenland Survey Bulletin, vol. 183, Dec. 1999, pp. 39-45, doi:10.34194/ggub.v183.5203.