@article{oai:ehime-u.repo.nii.ac.jp:00001218,
 author = {LI, Kai and SAKAI, Masato and MORIZANE, Yukihiro and KONO, Masahiro and NODA, Matu-Tarow},
 journal = {工学ジャーナル = Annual journal of engineering, Ehime University},
 month = {Mar},
 pages = {119--128},
 title = {Lupin : Towards the Framework of Web-based Problem Solving Environments},
 volume = {4},
 year = {2005}
}