1. B. I. Stepanov, An Introduction to the Chemistry and Technology of Organic Dyes (Khimiya, Moscow, 1984) [in Russian].
2. V. Ya. Faĭn, 9,10-Anthraquinones and Their Application (Photochemistry Center, Russian Academy of Sciences, Moscow, 1999) [in Russian].
3. V. Ya. Faĭn, Electronic Absorption Spectra and the Structure of 9,10-Anthraquinones (Sputnik+, Moscow, 2003), Vol. 1 [in Russian].
4. R. A. Muzychkina, Natural Anthraquinones: Biological Properties and Physicochemical Characteristics (Fazis, Moscow, 1998) [in Russian].
5. S. B. Strashnova, B. E. Zaitsev, V. E. Zavodnik, O. V. Kovalchukova, and D. P. Voronin, Koord. Khim. 33(11), 864 (2007) [Russ. J. Coord. Chem. 33 (11), 850 (2007)].