1. A review of the flotation of native gold and electrum
2. Hendriks , D.W. ; Chevalier , G. ( 2004 ) Recovery of gold using gravity concentration the Hemlo experience, website ofwww.knelson.com
3. Laplante , A.R. ( 2001 ) Report on the characterization of gravity recoverable gold in a sample of Kemess 1 Ore, Technical Report, McGill University, January.
4. Wotruba , H. ; Müller , W. ( 2001 ) Dichtesortierung von primären Golderzen als Alternative zur Laugung, Sortieren Innovationen und Anwendungen, Vortraege zum 2. Kolloqium Sortieren, 11. und 12. Oktober, Berlin, 169–176.
5. Beneficiation of a gold bearing enargite ore by flotation and As leaching with Na-hypochlorite