Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) ARAI Makoto,The electoral principles of the second chamber and the Constitution,Japanese Journal of Electoral Studies,09123512,Japanese Association of Electoral Studies,2009,24,2,62-73,https://cir.nii.ac.jp/crid/1390001205303171584,https://doi.org/10.14854/jaes.24.2_62