@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}}