1. R. Sanghani, Novel technique for the recovery of uranium from phosphoric acid simultaneous to acid purification, in: International Atomic Energy Agency (IAEA), Technical Meeting on Uranium Production from Phosphate Rocks, Vienna, Austria, 26–29 September, 2011.
2. IAEA, The Recovery of Uranium from Phosphoric Acid, Atomic Energy Authority, Vienna, 1989, 1–104 (TECDOC-533).
3. Recovery of uranium from wet process phosphoric acid by extraction with Octylphenylphosphoric acid;Hurst;Ind. Eng. Chem. Process Des. Dev.,1974
4. A.P.C. Cogema, FR Patent 7720552, 1977.
5. Uranium(VI) and ruthenium extraction by dialkyldithiophosphoric acids;Fitoussi;Sep. Sci. Technol.,1980