1. B. V. Nekrasov, Principles of General Chemistry [in Russian], Vysshaya Shkola, Moscow (1973).
2. V. V. Gubarev, Probabilistic Models: A Handbook and Textbook [in Russian], Izd. NETI, Novosibirsk (1992).
3. Methods of Data Analysis [Russian translation by S. A. Aivazyan], Finansy i Statistika, Moscow (1985).
4. S. A. Aivazyan (ed.), Applied Statistics: Classification and Reduction of Dimensionality [in Russian], Finansy i Statistika, Moscow (1989).
5. V. Borovikov, STATISTICA: The Art of Data Analysis on Computers for Professionals [in Russian], Izd. Piter, St. Petersburg (2001).