1. Effect of tapioca flour on the anionic flotation of gangue from iron ores;Colombo;U.S. Bur. Mines, Rep. Inves.,1972
2. Beneficiation of nonmagnetic taconites by selective flocculation—cationic flotation;Colombo;U.S. Bur. Mines, Rep. Invest.,1976
3. Effect of structure and unsaturation of collector on soap flotation of iron ore;Cooke;Min. Eng.,1959
4. Chelation of quartz activating ions in oleic acid flotation;Daellenbach;Trans. AIME,1964
5. Process for improved flotation treatment or iron ores by selective flocculation;Frommer,1966