Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Nishimura Sachiko and Takai Noriko and Nakamura Tetsu,Dynamic circulation model regarding frequency of overseas travel : decoding 'Fewer young Japanese travelling abroad' phenomena,同志社商学,03872858,The Association of Commerce Doshisha University,2014-01-30,65,4,337-363,https://cir.nii.ac.jp/crid/1390290699890776320,https://doi.org/10.14988/pa.2017.0000013441