Tschitschibabin; Kirssanow
Chemische Berichte, 1924 , vol. 57, p. 1164
Zhurnal Russkago Fiziko-Khimicheskago Obshchestva, 1925 , vol. 56, p. 159

Wagner, Florence F.; Comins, Daniel L.
European Journal of Organic Chemistry, 2006 , # 16 p. 3562 - 3565