Rinke Hoekstra Joost Breuker Marcello Di Bello Alexander Boer LKIF Core: Principled Ontology Development for the Legal Domain. 21-52 2009 Law, Ontologies and the Semantic Web http://dx.doi.org/10.3233/978-1-58603-942-4-21 conf/icail/2009faia db/conf/icail/faia188.html#HoekstraBBB09