Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Hewlett-Packard Product,Measuring dielectric constant with the HP 8510 Network Analyzer,Hewlett-Packard Product Note 8510-3,,,1985,,,5954-1535,https://cir.nii.ac.jp/crid/1572261549958809344,