1. Hoey GR, Dingley W (1971) CIM Bulletin 64:62–69
2. Taggart AF (1951) Elements of ore dressing. John Wiley and Sons, Inc., New York, p 410
3. Hoey GR, Dingley W, Lui AW (1974) Div Report No. EMA 74-14, Canada, Dept. of Energy, Mines & Resources, Mines Branch, Ottawa, Sept. 11
4. Berthelot M (1859) Rep Chim Appl 1:284
5. Noble ED (1955) Anal Chem 27:1413