1. J. D. Miller and D. J. Kinneberg , “ Fast Flotation with an Air-Sparged Hydrocyelone ,” Proceedings of MINTEK 50 , Johannesburg , South Africa , 1984 , p. 373 .
2. A. J. Burger , “ Flotation of a Coarse Pyrite Ore in an Air-Sparged Hydrocyclone ,” M.S. Thesis , University of Stellenbosch , South Africa , September 1986 .