Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) MATSUMOTO Hirokazu,Present Status and Perspective of Length Standards,Journal of the Japan Society for Precision Engineering,09120289,The Japan Society for Precision Engineering,2000,66,11,1671-1674,https://cir.nii.ac.jp/crid/1390282679774691072,https://doi.org/10.2493/jjspe.66.1671