Koppelhus, Eva B., and Gregers Dam. “Palynostratigraphy and Palaeoenvironments of the Rævekløft, Gule Horn and Ostreaelv Formations (Lower–Middle Jurassic), Neill Klinter Group, Jameson Land, East Greenland”. GEUS Bulletin 1 (October 28, 2003): 723–775. Accessed August 11, 2022. https://geusbulletin.org/index.php/geusb/article/view/4688.