Gottlob, G., Lukasiewicz, T., Simari, G., & Benferhat, S. (2011). Answering Threshold Queries in Probabilistic Datalog+/- Ontologies. Springer.

Gottlob, G., T. Lukasiewicz, G. Simari, and S. Benferhat. Answering Threshold Queries in Probabilistic Datalog+/- Ontologies. Springer, 2011.

Gottlob, G., et al. Answering Threshold Queries in Probabilistic Datalog+/- Ontologies. Springer, 2011.