Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) ASAI Takeshi and NAKAYAMA Masao and HONG Sungchan and NAITO Kiyoshi and SAKAMOTO Keiko and SUDA Syogo,A-16 Nonstationarity on knuckling effect ball in Soccer,"The Proceedings of Joint Symposium: Symposium on Sports Engineering, Symposium on Human Dynamics",2433-1309,The Japan Society of Mechanical Engineers,2009,2009,0,82-87,https://cir.nii.ac.jp/crid/1390282681045408384,https://doi.org/10.1299/jsmesports.2009.0_82