Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Kudo Ryuta,A Historical Study of the Formative Process of Aikido as a Modern Budo,Japan Journal of the History of Physical Education and Sport,0914-4730,Japan Society of the History of Physical Education and Sport,2018,35,0,27-42,https://cir.nii.ac.jp/crid/1390012003754835584,https://doi.org/10.24686/taiikushi.35.0_27