title: semantic assumptions and query evaluation in temporal databases. authors: sushil jajodia , xiaoyang sean wang , elisa bertino , claudio bettini. venue: sigmod conference. year: 1995.0
title: semantic access : semantic interface for querying databases. authors: naphtali rishe , jun yuan , rukshan athauda , shu-ching chen , xiaoling lu , xiaobin ma , alexander vaschillo , artyom shaposhnikov , dmitry vasilevsky. venue: very large data bases. year: 2000.0