1. A.G. Sharpe, The Chemistry of Cyano Complexes of the Transition Metals (Academic Press, London, 1976)
2. K.A. Hofmann, F. Küspert, Z. Anorg, Allgem. Chem 15, 204 (1897)
3. J. Cernak, M. Orendac, I. Potocnak, J. Chomic, A. Orendacova, J. Skorsepa, A. Feher, Coord. Chem. Rev 224, 51 (2002)
4. T. Iwamoto, in Comprehensive Supramolecular Chemistry, vol. 6, ed. by D.D. MacNicol, F. Toda, R. Bishop (Pergamon Press, Oxford, 1996). Chapter 19
5. T. Iwamoto, J. Incl. Phenom 24, 61 (1996)