1. Bain, F. A. and J. O. L. Roberts, “Method for Reducing Mineral Content of Sludge”, U.S. Patent 4 018 664, April 1977, to Great Canadian Oil Sands Ltd.
2. Processing Athabasca Tar Sands-Tailings Disposal;Camp;Can. J. Chem. Eng.,1977
3. Davitt, H. J., “Recovery of Bitumen from Sludge Resulting from Hot Water Extraction of Tar Sands”, Canadian Patents 975696, 975697, 975699 and 975700, October 1975, to Great Canadian Oil Sands Ltd.
4. Recovery of Residual Bitumen from the Aqueous Tailings from Hot Water Extraction of Oil Sands by Air Sparging;Hall;Energy Processing,1980
5. Clay Slimes from the Extraction of Alberta Oil Sands, Florida Phosphate Matrix, and Other Mined Deposits;Kessick;CIM Bull.,1978