International Conference on Entity-Relationship Aproach to Systems Analysis and Design,Los Angeles,1 International Conference on Entity-Relationship Aproach to Systems Analysis and Design,Los Angeles,1979 Entity-relationship approach to systems analysis and design International Conference on Entity Relationship Approach(8th:1989:Toronto,Canada) International Conference on Entity-Relaionship Approach(3rd:1983:Anaheim,Calif) International Conference on Entity-Relationship Approach(4ht:1985:Chicago,Ill) International Conference on Entity Relationship Approach(2nd:1981:Washington,D.c.) International Conference on Experinemtal stress analysis International Conference on Micro Electro, opto,Mechanic Systems and Components