1. C. Tsallis, Introduction to Nonextensive Statistical Mechanics. Approaching a Complex World, Springer, New York (2009).
2. R. G. Zaripov, Principles of Non-Extensive Statistical Mechanics and the Geometry of Measures of Disorder and Order [in Russian], Kazan’ State Technical University Press, Kazan’ (2010).
3. J. Naudts, Generalized Thermostatistics, Springer, Berlin (2011).
4. N. Bourbaki, Elements of Mathematics: Integration, Springer, Berlin (2004).
5. A. Renyi, Probability Theory, North-Holland Publ. Co., Amsterdam (1970).