Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) 野村 光由 and 呉 勇波 and 加藤 正名 and 立花 亨,Investigation of ultrasonic vibration assisted internal grinding of small holes(2nd Report) -On the decrease of grinding force due to the assistance of ultrasonic vibration-,Proceedings of JSPE Semestrial Meeting,,The Japan Society for Precision Engineering,2003,2003A,0,496-496,https://cir.nii.ac.jp/crid/1390282680625831168,https://doi.org/10.11522/pscjspe.2003a.0.496.0