title: an ontological analysis of the relationship construct in conceptual modeling acm trans . database syst . 1999. authors: veda c. storey , yair wand , ron weber. venue: nan. year: nan
title: an ontological analysis of the relationship construct in conceptual modeling acm transactions on database systems ( tods ) 1999. authors: yair wand , veda c. storey , ron weber. venue: nan. year: nan