Young; Roberts; Wax
Journal of the American Chemical Society, 1945 , vol. 67, p. 842

Dzhemilev, U. M.; Vostrikova, O. S.; Sulmanov, R. M.; Kukovinets, A. G.; Khalilov, L. M.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1984 , vol. 33, p. 1873 - 1879
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1984 , # 9 p. 2053 - 2060