1. T. L. Gilchrist, Heterocyclic Chemistry, Addison Wesley Longman Ltd., UK, 1997, 3rd Edition, pp. 193-207.
2. Pyrroles and their Benzo Derivatives: (ii) Reactivity, in: Comprehensive Heterocyclic Chemistry, (Eds.: Pergamon Press: New York, 1984 , pp. 201-312.
3. R. J. Sundberg, Pyrroles and their Benzo Derivatives: (i) Synthesis and Applications, ibid, pp. 313-376.
4. Monopyrrolic Natural Compounds Including Tetramic Acid Derivatives, in: Progress in the Chemistry of Organic Natural Products (Eds.: Springer-Verlag,Vienna, 2003 , pp. 2-188.