1. Aromatic substitution. XXVIII. Mechanism of electrophilic aromatic substitutions
2. P. B. D. de la Mare and R.Bolton, Electrophilic Addition to Unsaturated Systems, Elsevier, Amsterdam, 1982.
3. A. Streitwieser and C. H.Heathcock, Introduction to Organic Chemistry, 2nd edn., Macmillan Publ., New York, 1981.
4. R. W. Alder , R.Baker and J. M.Brown, Mechanism in Organic Chemistry, Wiley, New York, 1971.
5. Proton-Addition Complexes of Aromatic Hydrocarbons