Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Ichikawa Yasuhisa and Mochiyama Hiromi and Fujimoto Hideo,Impulse Force Generator Based on a Serial Chain of Torsion Springs for Catapulting an Object,Journal of the Robotics Society of Japan,02891824,The Robotics Society of Japan,2011,29,1,47-54,https://cir.nii.ac.jp/crid/1390282679701765504,https://doi.org/10.7210/jrsj.29.47