1. Bugosh J. U.S. Patent 2 915 475 (1959).
2. ABDENKO, M.A., PROBL KINET KATAL 9: 61 (1957).
3. BENTON, A.F., A gel of metallic platinum, JOURNAL OF PHYSICAL CHEMISTRY 30: 1415 (1926).
4. BORESKOV, G.K., ZHURNAL FIZICHESKOI KHIMII 26: 1714 (1952).
5. BORESKOV, G.K., ZHURNAL FIZICHESKOI KHIMII: 2757 (1956).