Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) MIYASHITA Hiroaki and CHIBA Isamu,An Approximate Formula for an Equivalent Susceptance of a Circular Iris in a Parallel Plate Waveguide,Technical report of IEICE. RCS,,"The Institute of Electronics, Information and Communication Engineers",1998-10-23,98,359,19-24,https://cir.nii.ac.jp/crid/1573668927233413120,