Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Watanabe Yuji and Tsuda Yoneo and Mori Eiji,Ultrasonic joining of polytetrafluoroethylene sheets using a 300 kHz longitudinal vibration system,THE JOURNAL OF THE ACOUSTICAL SOCIETY OF JAPAN,03694232,Acoustical Society of Japan,1995,51,7,501-508,https://cir.nii.ac.jp/crid/1390282681544295552,https://doi.org/10.20697/jasj.51.7_501