1. Beneficiation of fluorspar by column flotation;Bhaskar Raju;Minerals and Metallurgical Processing,2002
2. Beneficiation of iron ores by column flotation;Bhaskar Raju;Trans. IMM.,1993
3. Concentrating copper with columns;Carter;E&MJ Aug,1991
4. Column Flotation;Dobby,1990
5. Coalescence and froth collapse in the presence of fatty acid;Espinosa-Gomez;Journal of Colloids and Surfaces,1988