1. L. M. Yagupol’skii,Aromatic and Heterocyclic Compounds with Fluorine-Containing Substituents [in Russian], Naukova Dumka, Kiev (1988).
2. A. K. Barber, L. I. Belf, and M. V. Baxton,Advances in Fluorine Chemistry, M. Stacey, J. C. Tatlow, and A. G. Sharpe (eds.), Butterworths, London (1960).
3. G. A. Boswell, W. C. Ripka, R. M. Scribner, and C. W. Tullock,Organic Reactions, Vol. 21, New York (1974), pp. 1–124.
4. L. M. Yagupol’skii, A. I. Burmakov, and L. A. Alekseeva,Reactions and Methods for the Investigation of Organic Compounds [in Russian], Vol. 22, Khimiya, Moscow (1971), pp. 40–165.
5. V. C. R. McLoughlin and J. Thrower,Tetrahedron,25, No. 24, 5921–5940 (1969).