1. International Symposium on Solvent Extraction in Metallurgical Processes;Warwick,1972
2. Advances in Extractive Metallurgy;Haffenden,1967
3. International Symposium on Solvent Extraction in Metallurgical Processes;Agers,1972
4. International Symposium on Solvent Extraction in Metallurgical Processes;Reinhardt,1972
5. Metal-chloride complexes studied by ion-exchange and solvent-extraction methods