Liwen Ma, Hui Lu. Six-Set Approximation Theorem of neighborhood related rough sets. Int. J. Approx. Reasoning, 115:180-193, 2019. [doi]
@article{MaL19-18, title = {Six-Set Approximation Theorem of neighborhood related rough sets}, author = {Liwen Ma and Hui Lu}, year = {2019}, doi = {10.1016/j.ijar.2019.09.011}, url = {https://doi.org/10.1016/j.ijar.2019.09.011}, researchr = {https://researchr.org/publication/MaL19-18}, cites = {0}, citedby = {0}, journal = {Int. J. Approx. Reasoning}, volume = {115}, pages = {180-193}, }