Fleck
Journal of Organic Chemistry, 1947 , vol. 12, p. 708,710

Kuz'mina, N. A.; Vakhtangishvili, L. V.; Rusanov, A. L.; Fidler, S. Kh.; Chukovskaya, E. Ts.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1986 , vol. 35, # 6 p. 1311 - 1313
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1986 , # 6 p. 1443 - 1446

Geigy Co.
Patent: GB604983 , 1945 ;

Voronkov, M. G.; Deryagina, E. N.; Shagun, L. G.; Vitkovskii, V. Yu.
Journal of Organic Chemistry USSR (English Translation), 1983 , vol. 19, # 5 p. 962 - 966
Zhurnal Organicheskoi Khimii, 1983 , vol. 19, # 5 p. 1079 - 1084

Geigy Co. Ltd.
Patent: GB604983 , 1945 ;

Kuz'mina, N. A.; Vakhtangishvili, L. V.; Rusanov, A. L.; Fidler, S. Kh.; Chukovskaya, E. Ts.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1986 , vol. 35, # 6 p. 1311 - 1313
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1986 , # 6 p. 1443 - 1446