Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Kaku Sachio,Social Insurance System in Germany during the World War One (1),經濟學研究,0022975X,"Society of Political Economy, Kyushu University",2012-09-28,79,2/3,1-33,https://cir.nii.ac.jp/crid/1390009224838040448,https://doi.org/10.15017/25238