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Katritzky, Alan R.; Witek, Rachel M.; Rodriguez-Garcia, Valerie; Mohapatra, Prabhu P.; Rogers, James W.; Cusido, Janet; Abdel-Fattah, Ashraf A. A.; Steel, Peter J.
Journal of Organic Chemistry, 2005 , vol. 70, # 20 p. 7866 - 7881

Tomchin, A.B.
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Zhurnal Organicheskoi Khimii, 1981 , vol. 17, # 3 p. 589 - 595