@inbook{inbookd3a16092,
title   = {Activation and depression of silicates during anionic flotation of igneous apatites},
author = {Leal Filho, Laurindo de Salles and Assis, Sonia Margarida de and Barros, L. A. F. and Peres, Antonio Eduardo Clark},
year = {2002},
publisher = {Society for Mining, Metallurgy and Exploration},
journal   = {Beneficiation of phosphates: fundamentals and technology}
}