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"How Many Variables are Needed to Express an Existential Positive Query?"

Simone Bova, Hubie Chen (2019)

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DOI: 10.1007/S00224-018-9884-Z

access: closed

type: Journal Article

metadata version: 2019-08-14

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Simone Bova, Hubie Chen:
How Many Variables are Needed to Express an Existential Positive Query? Theory Comput. Syst. 63(7): 1573-1594 (2019)

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