Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Fukada Shigeo and Fukuda Ryosuke,Studies on Microscopic Behavior of Ball Screw,Proceedings of JSPE Semestrial Meeting,,The Japan Society for Precision Engineering,2013,2013A,0,463-464,https://cir.nii.ac.jp/crid/1390282680632165376,https://doi.org/10.11522/pscjspe.2013a.0.463.0