Robertson; Robinson Journal of the Chemical Society, 1928 , p. 1526,1530 Full Text Show Details Robinson; Willstaetter Chemische Berichte, 1928 , vol. 61, p. 2506 Full Text Show Details Malkin; Nierenstein Chemische Berichte, 1928 , vol. 61, p. 798 Journal of the American Chemical Society, 1931 , vol. 53, p. 239