Vallebuona, G., A. Casali, F. Rodríguez, and D. Endara. “Bubbles Size Distribution in Mechanical Flotation Cells at Laboratory and Industrial Scale and Modeling of the Effects of the Operating Variables”. Revista De Metalurgia, vol. 44, no. 3, June 2008, pp. 233-42, doi:10.3989/revmetalm.2008.v44.i3.111.