1. Information Technology and the U.S. Economy
2. The new digital economy. How it will transform business. http://www.citibank.com/transactionservices/home/ docs/the_new_digital_economy.pdf (2011). Accessed 10 Jan 2019
3. Rifkin J.: The third industrial revolution: how lateral power is transforming energy, the economy, and the world. Palgrave Macmillan, New York (2011)
4. Kurzweil R.: The law of accelerating returns. http://www.kurzweilai.net/the-law-of-acceleratingreturns%3E (2001). Accessed 5 Dec 2018