Dawson, J.B., J.V. Smith, and I.M. Steele. “Peralkaline Plutonic Magmatic Rocks of the Carbonatite Volcano Oldoinyo Lengai”. International Kimberlite Conference: Extended Abstracts 5 (February 1, 1991): 69–70. Accessed April 24, 2024. https://ikcabstracts.com/index.php/ikc/article/view/2467.