1. Reuse of spent pickling liquor;Bansal,1996
2. Reference document on best available techniques in the ferrous metals processing industry;BAT,2001
3. Diploma work;Bogoly,1995
4. Anion exchange for the ultra-high purification of transition metals;Kékesi;Erzmetall,2003
5. Ultra-high purification of iron by anion exchange in hydrochloric acid solutions;Kekesi;Hydrometallurgy,2002