1. The kinetics of the sulphuric acid leaching of nickel and magnesium from reduction roasted serpentine;Apostolidis;Hydrometallurgy,1978
2. Arroyo, J.C., Neudorf, D.A. 2002. Acidic leaching at atmospheric pressure for recovery of nickel and cobalt from limonite and saprolite ores. US 2001-8649932002041840.
3. Canterford, J.H. 1979. The sulfation of oxidized nickel ores. In: Int. Laterite Symp. Proc. pp. 636–0677.
4. Canterford, J.H. 1986. Acid leaching of chromite-bearing nickeliferous laterite from Rockhampton, Queensland. In: AusIMM Bull. Proc. pp. 51–56.
5. Cobalt and nickel recoveries from laterite tailings by organic and inorganic bioacids;Coto;Advanced Materials Research,2007