1. Grimes, R. N.Carboranes; Academic Press: New York, 1970.
2. Hoard, J. L.; Hughes, R. E. InChemistry of Boron and its Compounds; Muetterties, E. L., Ed.; Wiley & Sons: New York, 1967; pp 25−154.
3. Lipscomb, W. N.Boron Hydrides; Benjamin: New York, 1963; Chapter 2.