Marco A. Casanova Jose E. Amaral de Sa Designing Entity-Relationship Schemes for Conventional Information Systems. 265-277 1983 ER db/conf/er/er83.html#CasanovaA83 conf/er/83 db/conf/er/CasanovaA83.html er83/ER83-P265.pdf ... conf/vldb/BeeriBG78 journals/tods/Chen76 conf/pods/CasanovaFP82 conf/pods/CasanovaV83 books/aw/Date81 conf/vldb/Kent81 conf/er/Klug79 conf/vldb/NavatheG82 books/ph/TeoreyF82 books/cs/Ullman80