Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) SEKIGUCHI Shin-ichiro and ASADA Hideki and TOMIOKA Naoki and MOTOYAMA Kenji and HAYASI Takanori,A STUDY ON INTERNATIONAL EVALUATION FOR THE NORTH BREAKWARTER OF OTARU HARBOUR,PROCEEDINGS OF CIVIL ENGINEERING IN THE OCEAN,0912-7348,Japan Society of Civil Engineers,2006,22,,697-702,https://cir.nii.ac.jp/crid/1390282680180941312,https://doi.org/10.2208/prooe.22.697