1. G. N. Shilov, A. I. Balakleevskii, O. I. Shadyro, et al., USSR Inventor's Certificate No. 182 759;Byull. Izobret., No. 26 (1993).
2. D. K. Petrikevich, V. A. Timoshchuk, O. I. Shadyro, et al.,Khim.-Farm. Zh.,29(12), 32–34 (1995).
3. L. A. Maslovskaya, D. K. Petrikevich, V. A. Timoshchuk, et al.,Zh. Obshch. Khim.,66(11), 1893–1898 (1996).
4. L. A. Maslovskaya, D. K. Petrikevich, V. A. Timoshchuk, et al.,Zh. Obshch. Khim.,66(11), 1899–1902 (1996).
5. O. I. Shadyro, G. N. Shilov, V. A. Timoshchuk, et al.,Vopr. Med. Khim.,43(1), 41–57 (1997).