Malkin; Nierenstein Journal of the American Chemical Society, 1930 , vol. 52, p. 2864,2868 Full Text Show Details Watson; Meek Journal of the Chemical Society, 1915 , vol. 107, p. 1569 Full Text Show Details Watson; Sen Journal of the Chemical Society, 1914 , vol. 105, p. 398 Full Text Show Details Robinson Chemische Berichte, 1934 , vol. 67, p. Abt. A, S. 85 Full Text Show Details Willstaetter; Mallison Justus Liebigs Annalen der Chemie, 1915 , vol. 408, p. 148 Chem. Zentralbl., 1914 , vol. 85, # II p. 1359