Baran, E. Mean amplitudes of vibration of the pentagonal pyramidal XeOF− 5 and IOF2− 5 anions. J. Fluorine Chem. 2000, 101: 61–63. doi:10.1016/S0022-1139(99)00194-3.
D. L. Kepert. Aspects of the Stereochemistry of Eight-Coordination. Progress in Inorganic Chemistry. 1978, 24: 179–249. doi:10.1002/9780470166253.ch4.