1. B. M. Mikhailov, Boron Hydride Chemistry (Nauka, Moscow, 1967) [in Russian].
2. E. L. Muetterties, Boron Hydride Chemistry (Academic, New York, San Francisco, London, 1975).
3. N. T. Kuznetsov, in Studies in Inorganic Chemistry and Chemical Technology, Collection of Articles of Inst. Gen. Inorg. Chem., Ed. by A. Yu. Tsivadze (Nauka, Moscow, 1988), p. 78 [in Russian].
4. H. C. Miller and E. L. Muetterties, US Patent No. 3169045 (1965).
5. H. C. Miller and E. L. Muetterties, GB Patent No. 989295 (1965).