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Zhurnal Organicheskoi Khimii, 1986 , vol. 22, # 2 p. 359 - 365

Shchel'tsyn, V. K.; Sycheva, E. A.; Potovina, M. G.; Krasil'nikova, G. S.; Kvitko, I. Ya.
Journal of Organic Chemistry USSR (English Translation), 1986 , p. 316 - 321
Zhurnal Organicheskoi Khimii, 1986 , vol. 22, # 2 p. 359 - 365

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Walther; v. Pulawski
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Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry (1972-1999), 1995 , # 7 p. 1497 - 1502