1. Recent advances in phosphazene (phosphonitrilic) chemistry
2. in: Phosphorus-Nitrogen Compounds, Academic Press, New York, 1972.
3. in: The Inorganic Heterocyclic Chemistry of Sulphur, Nitrogen and Phosphorus, Academic Press, New York, 1980, p. 214.
4. in: The Chemistry of Inorganic Homo and Heterocycles, Vol. 2, and (eds), Academic Press, New York, 1987, p. 501.
5. Phosphanzenes