1. G.W. Parshall, in: E.L. Muettterties (Ed.), The Chemistry of Boron and its Compounds, ch. 9, Wiley, New York, 1967.
2. J. Emsley, D. Hall (Eds.), The Chemistry of Phosphorus, Harper and Row, London, 1976, p. 446.
3. Preparation and Properties of Diborane Diphosphine
4. Chemistry of P—B Bonding: The Phosphinoborines and Their Polymers