Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) INUIGUCHI Masahiro,Modus ponens versus modus tollens associated with rough gradual decision rules induced from a decision table,International Journal of Hybrid Intelligent Systems Vol.2,,,2005,,,311-326,https://cir.nii.ac.jp/crid/1010000782433376906,