Bojesen-Koefoed, Jørgen A., Hans Peter Nytoft, and Flemming G. Christiansen. “Age of Oils in West Greenland: Was There a Mesozoic Seaway Between Greenland and Canada?”. GEUS Bulletin 4 (July 20, 2004): 49–52. Accessed August 7, 2022. https://geusbulletin.org/index.php/geusb/article/view/4783.