Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Koyama Takeo and Kose Kuniji and Hasegawa Kazuhiko,A Study on the Instability Criterion of the Manual Steering of Ships,Journal of the Society of Naval Architects of Japan,05148499,The Japan Society of Naval Architects and Ocean Engineers,1977,1977,142,119-126,https://cir.nii.ac.jp/crid/1390282679069144832,https://doi.org/10.2534/jjasnaoe1968.1977.142_119