1. G. P. Levit, L. B. Radina, V. P. Krasnov, et al.,Khim.-Farm. Zh.,30(5), 23–25 (1996).
2. A. B. Syrkin and L. B. Gorbacheva,Eksp. Klin. Farmakol.,59(2), 69–75 (1996).
3. G. P. Wheeler, B. J. Bowdon, J. A. Grimsley, et al.,Cancer Res.,34, 194–200 (1974).
4. G. P. Levit, A. N. Grishakov, V. P. Krasnov, et al.,Khim.-Farm. Zh.,30(11), 19–20 (1996).
5. C. C. Price, G. M. Gaucher, P. Koneru, et al.,Ann. N. Y. Acad. Sci.,163, 593–600 (1969).