@inproceedings{Casini12, Author = {Giovanni Casini and Umberto Straccia}, Booktitle = {Proceedings of the 8th Australasian Ontology Workshop (AOW-12)}, Pages = {28--39}, Number = {969}, Publisher = {CEUR.org}, Title = {Lexichographic Closure for Defeasible Description Logics}, Year = {2012}}