第1章 体操との出会い. Japanese Olympic Committee (interview in Japanese)
nikkansports.com
"死去の小野清子さん、骨折入院中にコロナ感染し急変" [Kiyoko Ono, who died, suffered a sudden change due to COVID-19 infection while hospitalized for a fracture]. Nikkan Sports (in Japanese). 18 March 2021. Retrieved 16 April 2021.