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Caro Chemische Berichte, 1893 , vol. 26, p. 255 Full Text Show Details Drabble; Nierenstein Chemical Abstracts, 1907 , p. 1146 Full Text Show Details Nierenstein; Webster Chemische Berichte, 1908 , vol. 41, p. 81 Full Text Show Details Silbermann; Ozorovitz Chem. Zentralbl., 1908 , vol. 79, # II p. 1022