1. Mottola, H.A. Anal chim. Acta 1998, 280,279,287
2. Influential early teaching texts include Hini, J.(1956) Physical organic chemistry. Mc Graue-Hill, New York ; Gould, F.S. (1959)
3. Jackson, R.A. (1972) Mechnism, An Introduction to the study of organic Reactions, Clarendon, Oxford: (a) P.2; (b) P.P. 12-15; (c) chapter 5
4. Hammett, H.P. (1970) Physical Organic Chemistry (2nd. Edn.) McGraw-Hill, Newyork, (a) P.1 : (b) P.P. 152-8
5. Brown, H.C. (1972) Boranes in Organic Chemistry. Cornell University press, Ithaca, NY, P.P. 258-61