Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Tomiyama Takashi and Ma Shugen and Wada Hideyuki,All-directional Walking of a Quadruped Robot based on Crawl and Rotation Gaits.,Journal of the Robotics Society of Japan,02891824,The Robotics Society of Japan,2002,20,3,307-314,https://cir.nii.ac.jp/crid/1390282679703120384,https://doi.org/10.7210/jrsj.20.307