db/conf/cikm/Ambrosio94.html Ana Paula Ambrosio Introducing Semantics in Conceptual Schema Reuse. 50-56 CIKM1994/P050.pdf 1994 conf/cikm/94 CIKM db/conf/cikm/cikm94.html#Ambrosio94 http://doi.acm.org/10.1145/191246.191259