著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Chen Degang and Wang Changzhong and Hu Qinghua,A new approach to attribute reduction of consistent and inconsistent covering decision systems with covering rough sets,Information Sciences,0020-0255,Elsevier BV,2007-09,177,17,3500-3518,https://cir.nii.ac.jp/crid/1360013172499230592,https://doi.org/10.1016/j.ins.2007.02.041