1. Kirkwood, J. G. (1954) J. Chem. Phys. 2, 351.
2. Reichardt, C. (1988) Solvents and Solvent Effects in Organic Chemistry, 2nd ed., VCH: New York, pp 190 - 203.
3. ɛ - 1)/(2s + 1) = 1/2 - 3/(4ɛ) + 3/(8ɛ2) - 3/(l6ɛ3) + ..., see: Espenson, J. H. (1981) Chemical Kinetics and Reaction Mechanisms, McGraw Hill, New York.
4. C. Reichardt (1964) Angew. Chem. Int. Ed, 3, 30.
5. Bentley, T. W. and Llewellyn, G. (1990) In Progress in Physical Organic Chemistry, Taft, R. W., Ed., Wiley, New York, pp. 121 - 158.