Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
NAGAMI Yoshito and IGA Tomoaki and IYOTA Taketoshi and CHOI Yongwoon and KUBOTA Yuzuru and WATANABE Kazuhiro,An elevator communication system for a mobile robot using frequency-modulated ultrasonic waves by dial tone multi frequency,Proceedings of the Japan Joint Automatic Control Conference,,The Japan Joint Automatic Control Conference,2003,46,0,947-948,https://cir.nii.ac.jp/crid/1390282680622616448,https://doi.org/10.11511/jacc.46.0.947.0