1. L. I. Alekseeeva, E. N. Anufrieva, V. V. Volodin, et al., Phytoecdysteroids [in Russian], St. Petersburg (2003), 2003.
2. Yu. K. Gusak, V. N. Darmograi, Yu. V. Karaseva, et al., Vest. Nov. Med. Tekhn., No. 3, 64-67 (2002).
3. L. N. Zibareva, Phytoecdysteroids of Plants of the Family Caryophyllaceae [in Russian], Saarbruecken (2012).
4. E. P. Zueva, D. V. Reikhart, S. G. Krylova, et al., Medicinal Plants in The Treatment Of Gastric and Duodenal Ulcer [in Russian], Tomsk (2003).
5. A. I. Orlov, Econometrics [in Russian], Rostov-on-Don (2009).