1. Method for recovering Ni and Co by acid extraction from nickel-containing laterite ore using preliminary mechanical activation. (OMG Finland Oy, Finland). Patent Application: WO;Aaltonen,2003
2. The Hydrolysis of Cations;Baes,1976
3. Leaching of some Australian nickeliferrous laterites with sulfuric acid at atmospheric pressure;Canterford;Proc. Australas. Inst. Min. Metall.,1978
4. Mineralogical aspects of the extractive metallurgy of nickeliferous laterites;Canterford,1978
5. Acidic leaching at atmospheric pressure of serpentinized saprolitic laterite ores for recovery of Ni and Co values;Curlook,2002