Flawitzki Justus Liebigs Annalen der Chemie, 1875 , vol. 179, p. 354 Full Text Show Details Kondakow Zhurnal Russkago Fiziko-Khimicheskago Obshchestva, 1888 , vol. 20, p. 146 Chemische Berichte, 21 Ref. <1888>,440