1. Process and engineering challenges in the treatment of refractory gold ores;Haines,1990
2. Bacterial oxidation at Vaal Reefs;Dempsey,1990
3. Use of a moderately Thermophilic bacterial culture for the treatment of refractory arsenopyrite concentrate;Spencer,1989
4. Bioleaching of refractory gold ores - out of the lab and into the pilot plant;Hackl,1989
5. Batch and continuous biooxidation of a gold-bearing, arsenopyrite-pyrite concentrate;Hansford,1991