https://en.wikipedia.org/wiki/Controversies_in_professional_sumo
https://www.theguardian.com/world/2018/jun/19/its-exhilarating-japans-female-sumo-wrestlers-take-on-sexism
https://www.washingtonpost.com/sports/2020/01/22/women-sumo-japan-olympics/
Women sumo wrestlers in Japan fighting for visibility
http://www.chinadaily.com.cn/hqzx/2013-02/06/content_16206538.htm
http://www.chinadaily.com.cn/hqzx/2013-02/06/content_16206538_2.htm
http://www.chinadaily.com.cn/hqzx/2013-02/06/content_16206538_3.htm
http://www.chinadaily.com.cn/hqzx/2013-02/06/content_16206538_5.htm
http://www.chinadaily.com.cn/hqzx/2013-02/06/content_16206538_6.htm
http://www.chinadaily.com.cn/hqzx/2013-02/06/content_16206538_7.htm
http://www.chinadaily.com.cn/hqzx/2013-02/06/content_16206538_8.htm
https://www.japantimes.co.jp/news/2018/04/30/national/social-issues/banning-women-sumo-ring-sexism-centuries-old-cultural-tradition/#.XoqXItNKjs0
http://www.womeninworldhistory.com/WR-04.html
[http://www.sumoforum.net/forums/topic/358-onna-zumo-sexy-sumo/]((https://youtu.be/562N39gpCvE) )
https://soranews24.com/2014/08/06/womens-sumo-slightly-less-traditional-but-every-bit-as-fun-as-the-original-if-not-more/
https://www.theguardian.com/sport/video/2018/dec/11/can-women-save-sumo-the-crossroads-facing-japans-national-sport-video
https://melmagazine.com/en-us/story/the-female-sumo-wrestlers-who-are-trying-to-beat-the-sports-sexist-history
https://www.nytimes.com/2000/03/26/world/governor-butts-heads-with-sumo-ban-on-women.html
https://www.bbc.com/news/world-asia-43934925
https://www.washingtonpost.com/sports/2020/01/22/women-sumo-japan-olympics/
https://www.japantimes.co.jp/news/2018/01/02/national/sumo-gets-boost-avid-female-fans/#.XopKRS2ZO8g

Music

"Advanced Japanese Folk" by Audiotoolz

https://freemusicarchive.org/music/Audiotoolz/Progressive_Folk/02_-_audiotoolz_-_advanced_japanese_folk

Under creative commons license: https://creativecommons.org/licenses/by-nc-nd/3.0/

Intro/Outtro music by MARiAN - Tokyo Trap.