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"On preservation under homomorphisms and unions of conjunctive queries."

Albert Atserias, Anuj Dawar, Phokion G. Kolaitis (2006)

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DOI: 10.1145/1131342.1131344

access: closed

type: Journal Article

metadata version: 2018-11-14

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  - journals/jacm/AtseriasDK06
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  - https://dblp.org/rec/journals/jacm/AtseriasDK06
Albert Atserias, Anuj Dawar, Phokion G. Kolaitis:
On preservation under homomorphisms and unions of conjunctive queries. J. ACM 53(2): 208-237 (2006)

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