著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL "Heinola, Janne-Matti and Lappeenrannan teknillinen yliopisto",Relative permittivity and loss tangent measurements of PWB materials using ring resonator structures,,Lappeenranta University of Technology,2006,Acta Universitatis Lappeenrantaensis,,9522142689,,https://cir.nii.ac.jp/crid/1130000796964548736