Taylor, W.R., and N.M.S. Rock. “Major Element Systematics of Alkaline Volcanic and Lamprophyric Rocks - Toward a Geochemical and Petrogenetic Classification Scheme for the Potentially Diamondiferous Alkaline Rocks”. International Kimberlite Conference: Extended Abstracts, vol. 5, Feb. 1991, pp. 414-6, doi:10.29173/ikc2588.