About LUSK E L
About Northern Illinois Univ.
About OVERBEEK R A
About Northern Illinois Univ.
About PARRELLO B
About Northern Illinois Univ.
About Proceedings of ACM-SIGMOD International Conference on Management of Data
About database management system
About relational model
About Database systems
About エンティティ
About モデル
About IMS
About データベース
About 設計