1. Efficient management of transitive relationships in large data and knowledge bases;Agrawal;ACM SIGMOD International Conference on Management of Data,1989
2. Etude combinatoire des ordonnés finis, Applications;Bouchet,1971
3. Representation of an order as union of interval orders;Capelle;Proceedings of ORDAL’94, LNCS 831,1994
4. Efficient handling of multiple inheritance hierarchies;Caseau;Proceedings of OOPSLA’93,1993
5. Encoding of multiple inheritance hierarchies and partial orders;Caseau;Comput. Intell.,1999