Widman
Chemische Berichte, 1888 , vol. 21, p. 2230
Chemische Berichte, 1889 , vol. 22, p. 2278

Widman
Chemische Berichte, 1888 , vol. 21, p. 2230
Chemische Berichte, 1889 , vol. 22, p. 2278

Chen, Fener; Liu, Anchang; Yan, Qiongjiao; Liu, Mingxing; Zhang, Daoming; Shao, Lanying
Synthetic Communications, 1999 , vol. 29, # 6 p. 1049 - 1056

Korostova, S. E.; Sobenina, L. N.; Nesterenko, R. N.; Aliev, I. A.; Mikhaleva, A. I.
Journal of Organic Chemistry USSR (English Translation), 1984 , vol. 20, p. 1790 - 1793
Zhurnal Organicheskoi Khimii, 1984 , vol. 20, # 9 p. 1960 - 1964

Aliev, I. A.; Almamedova, D. T.; Gasanov, B. R.; Mikhaleva, A. I.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1984 , vol. 20, # 10 p. 1117 - 1119
Khimiya Geterotsiklicheskikh Soedinenii, 1984 , vol. 20, # 10 p. 1359 - 1361