Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) 高田 誠二 and 小宮 勤一,"The Actual Length of Some ""El"" Scales Brought to Japan from the Netherlands (1)","計量史研究 = Bulletin of the Society of Historical Metrology, Japan",02867214,東京 : 日本計量史学会,2005,27,1,23-29,https://cir.nii.ac.jp/crid/1520290883098109696,