Celmer; Solomons
Journal of the American Chemical Society, 1953 , vol. 75, p. 3430,3434
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Petrow et al.
Zhurnal Obshchei Khimii, 1957 , vol. 27, p. 1167,1170,1176;engl. Ausg.S.1250,1254,1259
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Crombie; Jacklin
Journal of the Chemical Society, 1955 , p. 1740,1746