Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) CAI Yurong and HAYASHI Teru,The Evaluation Method of Tooth Profile Error for a Spur Gear Pair to Estimate Its Running Performance.,Journal of the Japan Society for Precision Engineering,09120289,The Japan Society for Precision Engineering,1993,59,3,429-434,https://cir.nii.ac.jp/crid/1390001204765555584,https://doi.org/10.2493/jjspe.59.429