![](/img/cover-not-exists.png)
Topological characterizations of covering for special covering-based upper approximation operators
Xun Ge, Xiaole Bai, Ziqiu YunVolume:
204
Year:
2012
Language:
english
Pages:
1
DOI:
10.1016/j.ins.2012.04.005
File:
PDF, 322 KB
english, 2012