1. Selective froth flotation of ultrafine minerais or slimes;Greene;Trans. Soc. Min. Eng., AIME,1962
2. Liquid-liquid extraction of ultrafine particles;Lai;Trans. Soc. Min. Eng., AIME,1968
3. Interaction Between Oil Drops and Minerai Surfaces;Mackenzie;Trans. Soc. Min. Eng. AIME,1970
4. Concentration of tin ores by selective oil agglomeration;Maclead,1966
5. La flotación con aglomeración de casiterita;Schubert,1966