Boolean conjunctive query: Difference between revisions

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m References: task, replaced: Journal of the ACM (JACM) → Journal of the ACM using AWB
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* {{cite journal
|author1=G. Gottlob |author2=N. Leone |author3=F. Scarcello | title = The complexity of acyclic conjunctive queries
| journal = Journal of the ACM (JACM)
| volume = 48
| issue = 3