1. Rao, K. H. and Forssberg, K. S. E. In Froth Flotation: a Century of Innovation;Fuerstenau, M. C., Jameson, G. and Yoon, R.H., Eds.Society for Mining, Metallurgy, and Exploration, Inc.:Littleton, CO, 2007; p498.
2. Gong, W.Q.Selective flotation of Mt Weld phosphate: Methods and principles.Ph.D. Thesis,University of Western Australia,Perth, Australia, 1989.
3. Su, F.Dephosphorization of magnetite fines.Ph.D. Thesis,Luleå University of Technology,Luleå, Sweden, 1998.