Fausto Giunchiglia, Luciano Serafini. Multilanguage hierarchical logics (or: how we can do without modal logics). In Gérard Comyn, Matthias Jarke, Suryanarayana M. Sripada, editors, CNKBS 92, Proceedings of the First Compulog Net Meeting on Knowledge Bases, Munich, Germany, 6-7 February 1992. Volume ECRC-92-2 of pages 44-45, European Computer-Industry Research Centre, Munich, 1992.
Abstract is missing.