Ohta Yoshihide, Hiroi Yoshikuni, and Hirajima Takao. “Additional Evidence of Pre-Silurian High-Pressure Metamorphic Rocks in Spitsbergen”. Polar Research 1, no. 2 (January 1, 2010): 215-218. Accessed December 2, 2024. https://polarresearch.net/index.php/polar/article/view/2560.