Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) "重本, 洋一 and Shigemoto, Yoichi",The effects of Poison Pills on shareholder value : a case of Japan in 2007,HUE Journal of Economics and Business,0387-1436,広島経済大学経済学会,2008-12-30,31,3,139-169,https://cir.nii.ac.jp/crid/1050014282714071040,