Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
HAGA Seiko,The Performance and Universal Design Charts of the Langevin Type Transducer with stepped or Tapered End Metals,THE JOURNAL OF THE ACOUSTICAL SOCIETY OF JAPAN,03694232,Acoustical Society of Japan,1962,18,4,197-213,https://cir.nii.ac.jp/crid/1390282681540668416,https://doi.org/10.20697/jasj.18.4_197