Bojesen-Koefoed, J. A. ., H. P. . Nytoft, and F. G. . Christiansen. “Age of Oils in West Greenland: Was There a Mesozoic Seaway Between Greenland and Canada?”. GEUS Bulletin, vol. 4, July 2004, pp. 49-52, doi:10.34194/geusb.v4.4783.