Green, R. W. E., C. B. Smith, M. Q. W. Jones, M. Muller, and K. S. Viljoen. “Progress towards Understanding the Kaapvaal Lithosphere: Geophysical and Geochemical Perspectives”. International Kimberlite Conference: Extended Abstracts 6, no. 1 (September 19, 1995): 188–190. Accessed April 26, 2024. https://ikcabstracts.com/index.php/ikc/article/view/1828.