Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) NUMADA Munetoshi and NOMURA Takashi and KAMIYA Kazuhide and TASHIRO Hatsuzo and KOSHIMIZU Hiroyasu,A Natural Spline that Approximates A Smoothing Spline,"Journal of the Japan Society for Precision Engineering, Contributed Papers",13488724,The Japan Society for Precision Engineering,2006,72,9,1157-1162,https://cir.nii.ac.jp/crid/1390282680258534912,https://doi.org/10.2493/jspe.72.1157