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2. Bow, C., Wolfgram, D., Turner, A., Barnes, S., Evans, J., Zdepski, M., and Boundreau, A. Investigations of the Howland Reef of the Stillwater Complex, Minneapolis Adit Area: Stratigraphy, Structure, and Mineralization. Economic Geology, vol. 77, 1982, pp. 1481–1492.
3. Canadian Institute of Mining & Metallurgy Special Volume 23,1981
4. Kennedy, Alan. Stillwater Platinum-Palladium Mine. Engineering & Mining Journal, Nov. 1987, pp. 418–427.
5. Bureau of Mines Report of Investigations 8500;J Bennetts,1981