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"Topological characterizations of covering for special covering-based upper ..."
Xun Ge, Xiaole Bai, Ziqiu Yun (2012)
- Xun Ge, Xiaole Bai, Ziqiu Yun:
Topological characterizations of covering for special covering-based upper approximation operators. Inf. Sci. 204: 70-81 (2012)

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