Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) TSUJINO Jiromaru and UEOKA Tetsugi and YANAGIHARA Toshiaki and TAKAHASHI Minoru and GOTO Nobuhiko and MASUDA Yoshiaki,Studies on Ultrasonic Welding of Ring Shape Weldment with Two Vibration Systems : High Power Ultrasonics,Japanese journal of applied physics. Supplement,00214922,The Japan Society of Applied Physics,1985-09-18,24,1,163-165,https://cir.nii.ac.jp/crid/1574231877185215360,