1. Countercurrent extraction separation of some platinum group metals
2. Separation of Iridium from Rhodium by Extraction with Tributyl Phosphate
3. Data of Inorganic Solvent Extraction, Jaeri 1047, Tokio 1963.
4. u. in: Solvent Extraction Chemistry, S. 327, North-Holland, Amsterdam 1967.
5. u. in [4], S. 343.