Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) 山下 義幸,最近の浚渫船の制御・表示装置について,Bulletin of the Society of Naval Architects of Japan,03861597,The Japan Society of Naval Architects and Ocean Engineers,1987,695,0,242-247,https://cir.nii.ac.jp/crid/1390282679034403328,https://doi.org/10.14856/zogakusi.695.0_242