Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Yamamoto Hiroshi and Saito Hikaru and Tabei Makoto and Ueda Mitsuhiro,Calculation of projection data for the ultrasonic computed tomography by the ray tracing method.,Journal of the Acoustical Society of Japan (E),0388-2861,Acoustical Society of Japan,1991,12,4,157-167,https://cir.nii.ac.jp/crid/1390282680067401216,https://doi.org/10.1250/ast.12.157