1999:http://hdl.handle.net/10097/14389
2001:http://hdl.handle.net/10232/1240
 [http://warp.da.ndl.go.jp/info:ndljp/pid/1195815/ecowww.leh.kagoshima-u.ac.jp/staff/kuwabara/20100918/phd03.jpg]
[http://archive.org/details/httpjairo.nii.ac.jp001600002370]
[http://gyo.tc/HBAj]
2005:http://hdl.handle.net/10232/4177
2006:http://hdl.handle.net/10232/417
2006:http://hdl.handle.net/10232/8982
2007:http://hdl.handle.net/10232/6924
2009:http://hdl.handle.net/10232/8157
2011:http://hdl.handle.net/10232/11060