"The characterizations of upper approximation operators based on coverings."

Pei Wang, Qingguo Li (2019)

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DOI: 10.1007/S00500-018-3197-7

access: closed

type: Journal Article

metadata version: 2019-04-15

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Pei Wang, Qingguo Li:
The characterizations of upper approximation operators based on coverings. Soft Comput. 23(10): 3217-3228 (2019)

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