Robuta

https://openlibrary.org/works/OL28962453W/Gao_deng_liu_ti_li_xue

https://www.narayana-verlag.de/Die-Organuhr-Li-Wu/b15974

https://clemson.world/archive/china-tharon-howard-english-professor-wendy-howard-05-m-12-xiaoli-li-ph-d-11-and-wu-dan-ph-d-10/