Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Sugimoto Norihiro and Hayashi Hirotaka,Why Is It Felt Harder to Be Struck with an Inelastic Ball? : Observation of the Strike by Means of Electromagnetic Induction,Journal of the Physics Education Society of Japan,03856992,The Physics Education Society of Japan,2002,50,1,11-15,https://cir.nii.ac.jp/crid/1390282679490324736,https://doi.org/10.20653/pesj.50.1_11