1. 2016 eSports Market Report. - https://superdata-research.myshopify.com/products/spring-2016-esports-market-report
2. Heere, B. (2017). Embracing the sportification of society: Defining e-sports through a polymorphic view on sport. Sport Management Review, 18. - http://www.sciencedirect.com/science/article/pii/S144135231730061X
3. Daniel C. Funk, Anthony D. Pizzo, Bradley J. Baker (2017). eSport management: Embracing eSport education and research opportunities. Sport Management Review, 23. - http://www.sciencedirect.com/science/article/pii/S1441352317300670
4. eSports revenues for 2016 adjusted upward to $493m. - https://newzoo.com/insights/articles/esports-revenues-2016-adjusted-upward-493m/
5. Kirstin Hallmann, Thomas Giel (2017). Esports – competitive sports or recreational activity? Sport management review, 31. - doi.org/10.1016/j.smr.2017.07.011