Ohta , Yoshihide, Alexander N. Larionov, Alexander M. Tebenkov, Claude Lepvrier, Henri Maluski, Michael Lange, and Barbara Hellebrandt. “Single-Zircon Pb-Evaporation and 40Ar/39Ar Dating of the Metamorphic and Granitic Rocks in North-West Spitsbergen”. Polar Research 21, no. 1 (January 6, 2002): 73-89. Accessed March 27, 2026. https://polarresearch.net/index.php/polar/article/view/2131.