Nowell, G.M., P.D. Kempton, and D.G. Pearson. “Trace Element and Isotope Geochemistry of Siberian Kimberlites”. International Kimberlite Conference: Extended Abstracts 7, no. 1 (April 17, 1998): 631–633. Accessed April 19, 2024. https://ikcabstracts.com/index.php/ikc/article/view/2828.