1. Non-Aqueous Solvent Systems;Hyman,1965
2. A. F. Clifford and G. Balog, The Hydrogen Fluoride Solvent System: Polarographic Studies paper presented before the Fluorine Symposium Division of Industrial and Engineering Chemistry, New York, Sept. 4, 1951.
3. A. F. Clifford and G. Balog, U.S. A.E.C. Rep., AECU-1491.