Petrow Chemische Berichte, 1929 , vol. 62, p. 644 Zhurnal Russkago Fiziko-Khimicheskago Obshchestva, 1928 , vol. 60, p. 1444 Full Text Show Details Petrow Zhurnal Russkago Fiziko-Khimicheskago Obshchestva, 1928 , vol. 60, p. 1443 Chem. Zentralbl., 1929 , vol. 100, # I p. 2047