https://archive.ph/https://twilog.org/TK65802767/search?word=ndljp%20/phd%20a.jpg%20ma0%20/2006-%20front-cover%20DPno0701%20DPno0902&ao=o

https://archive.ph/https://web.archive.org/web/20180913080657/http://warp.da.ndl.go.jp/info:ndljp/pid/1165035/ecowww.leh.kagoshima-u.ac.jp/staff/kuwabara/index.html

https://megalodon.jp/2021-0203-1033-11/https://web.archive.org:443/web/20180913080657/http://warp.da.ndl.go.jp/info:ndljp/pid/1165035/ecowww.leh.kagoshima-u.ac.jp/staff/kuwabara/index.html