Ana Paula Ambrosio Elisabeth Métais Jean-Noël Meunier The Linguistic Level: Contribution for Conceptual Design, View Integration, Reuse and Documentation. 111-129 1997 21 Data Knowl. Eng. 2 db/journals/dke/dke21.html#AmbrosioMM97 http://dx.doi.org/10.1016/S0169-023X(96)00028-6