1. Non-Metal Rings, Cages and Clusters; John Wiley and Sons, New York 1988
2. Cyclic Sulfur-Nitrogen Compounds
3. in The Chemistry of Inorganic Homo- and Heterocycles, (ed.), Vol. 2, Academic Press Inc., London 1987, p. 793
4. The Inorganic Heterocyclic Chemistry of Sulphur, Nitrogen and Phosphorus, Academic Press, London 1980
5. Sulphur Nitrides in Organic Chemistry