1. Gidrazony (Hydrazones [in Russian]); Eds: Kitaev, Yu. P.; Buzykin, B. I., Nauka: Moscow, 1974, p. 381.
2. Novaya Volna: Moscow, 2012, 16th Ed., p. 457. (b) Mashkovskii, M. D. Lekarstvennye sredstva (Drugs [in Russian])
3. Novaya Volna: Moscow, 2012, 16th Ed., p. 849.
4. (a) Mashkovskii, M. D. Lekarstvennye sredstva (Drugs [in Russian]); Novaya Volna: Moscow, 2012, 16th Ed., p. 457.
5. (b) Mashkovskii, M. D. Lekarstvennye sredstva (Drugs [in Russian]); Novaya Volna: Moscow, 2012, 16th Ed., p. 849.