1. Voronin, V.M., Litvinov, N.N., Kazachkov, V.I., et al., Studying the Dependence of the Carcinogenic Effect of Nitrosamine on the Concentration of N-nitrosodiethyleneamine, Vopr. Onkol., 1989, vol. 36, no. 6, pp. 685–689.
2. Gubanov, V.I., Stel’makh, L.V., and Klimenko, N.P., Comprehensive Estimates of Water Quality in Sevastopol Offshore Area (Black Sea), Ekologiya Morya, 2002, no. 62, pp. 76–80.
3. Il’nitskii, A.P., Yurchenko, V.A., Zhukova, G.F., and Ermilov, V.B., Assessment of the Extent of Carcinogenic Hazard of Small Doses of Nitrites, Vopr. Onkol., 1989, vol. 36, no. 7, pp. 843–847.
4. Lakin, G.F., Biometriya (Biometrics), Moscow: Vyssh. Shk., 1973.
5. Lopukhina, O.A. and Manzhos, L.A., Phytoplankton of Sevastopol Bay (Black Sea) in the Warm and Cold Periods of 2002–2003, Ekologiya Morya, 2005, no. 69, pp. 25–31.