Berg, G.W., and J.A. Carlson. “The Leslie Kimberlite Pipe of Lac De Gras, Northwest Territories, Canada: Evidence for Near Surface Hypabyssal Emplacement”. International Kimberlite Conference: Extended Abstracts, vol. 7, no. 1, Apr. 1998, pp. 81-83, doi:10.29173/ikc2639.