Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) HIRATA Koichi and KAWADA Masakuni and MIYAZAKI Keiko,Development of a Wheelchair with an Infinitely Variable Transmission,The Proceedings of the Transportation and Logistics Conference,2424-3175,The Japan Society of Mechanical Engineers,2004,2004.13,0,281-282,https://cir.nii.ac.jp/crid/1390001205903527552,https://doi.org/10.1299/jsmetld.2004.13.281