@phdthesis{oai:naist.repo.nii.ac.jp:00010369, author = {Morita, Toshiyuki and 森多, 俊之}, month = {Mar}, school = {奈良先端科学技術大学院大学}, title = {Efficient Access Control and Detection of Security Flaws under Authorizations in Object-Oriented Databases}, year = {1999}, yomi = {モリタ, トシユキ} }