1. Gnedenko, B.V. Course of probability theory (Nauka, Moscow, 2005) [in Russian].
2. Gini, C. Mean values (Statistika, Moscow, 1970) [in Russian].
3. Hardy, G.G., Littlewood, J. E., Polya, G. Inequalities (In. lit., Moscow, 1948) [in Russian].
4. Loeve, M. Probability theory (In. lit., Moscow, 1962) [in Russian].
5. Whittle, P. Probability (Nauka, Moscow, 1982) [in Russian].