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 Institute of Acoustics (Great Britain),"Call centres, - a measurement headache, 5 June 2003, Liverpool",,Institute of Acoustics,2003,Proceedings of the Institute of Acoustics,,1901656551,,https://cir.nii.ac.jp/crid/1130282271903467008