Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Kato M. and Minohara K. and Maniwa Y. and Hashimoto T.,The trial production and tests on the sea of the Tele-Sounder (Wireless Remote Control Supersonic Observing Apparatus for Under-water Information),The Journal of the Nautical Society of Japan,04666607,Japan Institute of Navigation,1964,31,0,11-17,https://cir.nii.ac.jp/crid/1390001206096708992,https://doi.org/10.9749/jina.31.0_11