1. Zubkova, L.D., Dyachkov, S.M.: Industry investment analysis of activities of Russian telecommunications companies. Stud. Russ. Econ. Dev. 29(2), 182–190 (2018)
2. Cottle, S., Murray, R.F., Blok F.E.: “Securities Analysis” by Graham and Dodd, vol. 704. ZAO Olimp—Business, Moscow (2000)
3. Damodaran, A.: Investment Assessment, vol. 1322. Alpina Business Books, Moscow (2004)
4. Nite, F.: Risk, Uncertainty and Profit, vol. 360. Business, Moscow (2003)
5. Porter, M.: Competitive Strategy: Technique Analyzing Industries and Competitors, vol. 454. Alpina Business Books, Moscow (2005)