Time Out. https://www.timeout.com/tokyo/news/your-first-look-at-the-tokyo-olympic-victory-ceremony-items-and-music-060921
International Olympic Committee. https://olympics.com/ioc/news/tokyo-2020-sustainable-games-for-a-sustainable-society
World Economic Forum. https://www.weforum.org/agenda/2020/01/tokyo-2020-olympic-games-sustainable/#:~:text=Tokyo%202020%20is%20aiming%20to,2.93%20million%20tonnes%20of%20CO2.