1. Structural Aspects of Aromaticity
2. P. v. R. Schleyer , Special Editor, Thematic issue of Chem. Rev., 2001, 101, 1115–1566
3. V. I. Minkin , M. N.Glukhotsev and B. Y.Simkin, Aromaticity and Antiaromaticity. Electronic and Structural Aspects; John Wiley & Sons: New York, 1994
4. P. J. Garratt , Aromaticity, Wiley: New York, 1986
5. Aromatic Character