Bennike, Ole, Jørgen O. Leth, Jørn Bo Jensen, Niels Nørgaard-Pedersen, and Steen Lomholt. “Arctic Plant Remains of Weichselian Age from the Danish North Sea”. GEUS Bulletin 31 (June 25, 2014): 43–46. Accessed June 28, 2022. https://geusbulletin.org/index.php/geusb/article/view/4657.