^ 2.02.12.2Greenwood, Norman N.; Earnshaw, A. Chemistry of the Elements. Oxford: Pergamon. 1984: 899. ISBN 0-08-022057-6.
^ 3.03.13.2Moyer, Harvey V., Chemical Properties of Polonium, Moyer, Harvey V. (编), Polonium, Oak Ridge, Tenn.: United States Atomic Energy Commission: 33–96, 1956 [2011-08-11], doi:10.2172/4367751, TID-5221, (原始内容存档于2019-07-01).