@article{oai:tsukuba.repo.nii.ac.jp:00022283,
 author = {青山, 俊弘 and Aoyama, Toshihiro and 山地, 一禎 and Yamaji, Kazutsuna},
 issue = {36},
 journal = {ディジタル図書館},
 month = {Mar},
 pages = {46--50},
 title = {論文アノテーションの共有システムの構築},
 year = {2009}
}