Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Iikawa Shingo and Okui Manabu and Suzuki Ryuji and Yamada Yasuyuki and Nakamura Taro,Development of Assistive Device with Variable Viscoelastic Joint,Journal of the Robotics Society of Japan,02891824,The Robotics Society of Japan,2018,36,8,567-575,https://cir.nii.ac.jp/crid/1390282763070484096,https://doi.org/10.7210/jrsj.36.567