1. Weaving the Web;Berners-Lee,1999
2. Tightly integrated probabilistic description logic programs for the Semantic Web;Calì,2007
3. Tightly integrated probabilistic description logic programs for representing ontology mappings;Calì,2008
4. Distributed information retrieval;Callan,2000
5. Query-based sampling of text databases;Callan;ACM Trans. Inform. Syst.,2001