Luginin Chemische Berichte, 1871 , vol. 4, p. 515 Full Text Show Details Zincke Chemische Berichte, 1871 , vol. 4, p. 399 Full Text Show Details Fittig Justus Liebigs Annalen der Chemie, 1866 , vol. 139, p. 178 Full Text Show Details Carnelley Journal of the Chemical Society, 1876 , vol. 29, p. 13 Journal of the Chemical Society, 1877 , vol. 32, p. 653