1. N. Baumann , H.-J.Fachmann, A.Kubry and B.Ledüc, Gmelin Handbook of Inorganic Chemistry, Sulfur–Nitrogen Compounds Part 7, System Number 9, Springer, Berlin, 1991, pp. 1–336.
2. H. G. Heal , The Inorganic Heterocyclic Chemistry of Sulfur, Nitrogen and Phosphorus, Academic Press, New York, 1980.
3. Cyclic Sulfur-Nitrogen Compounds
4. Sulfur-nitrogen anions and related compounds
5. Polysulfur nitride - a metallic, superconducting polymer