@article{oai:konan-u.repo.nii.ac.jp:00001295,
 author = {Xie, Gang and 岳, 五一 and Yue, Wuyi and Wang, Shouyang and Xie, Gang and Wang, Shouyang},
 issue = {2},
 journal = {甲南大学紀要.知能情報学編, Memoirs of Konan University. Intelligence & Informatics Series},
 month = {Dec},
 pages = {155--164},
 title = {A VPRS-Based Text Mining Approach for Risk Analysis of Petroleum Investment},
 volume = {2},
 year = {2009},
 yomi = {ユエ, ウイ}
}