Li, C., & Chang, E. Answering queries with useful bindings. ACM transactions on database systems..
Cita Chicago (17th ed.)Li, Chen, i Edward Chang. "Answering Queries with Useful Bindings." ACM Transactions on Database Systems. .
Cita MLA (9th ed.)Li, Chen, i Edward Chang. "Answering Queries with Useful Bindings." ACM Transactions on Database Systems., .
Atenció: Aquestes cites poden no estar 100% correctes.