1. History.com. First Winter Olympics; 2010. Available at: https://www.history.com/this-day-in-history/first-winter-olympics. [accessed 21.11.2021].
2. Wikipedia. 2022 Winter Olympics; 2021. Available at: https://en.wikipedia.org/wiki/2022_Winter_Olympics. [accessed 21.11.2021].
3. Wikipedia. 2022 Winter Paralympics; 2021. Available at: https://en.wikipedia.org/wiki/2022_Winter_Paralympics. [accessed 21.11.2021].
4. International Olympic Committee. Beyond the Games; 2021. Available at: https://olympics.com/ioc/beyond-the-games. [accessed 20.11.2021].
5. Beijing Organizing Committee for the 2022 Olympic and Paralympic Winter Games. Beijing 2022 Olympic and Paralympic Winter Games Sustainability Plan; 2021. Available at: https://www.beijing2022.cn/a/20200515/003205.htm. [accessed 20.11.2021].