Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Kikuchi Takashi and Uno Hirokatsu and Hosono Masuo and Hatakeyama Kiyoshi,Accurate Ocean Current Observation near the magnetic dip pole: compass error estimation,Journal of the Japan Society for Marine Surveys and Technology,09152997,Japan Society for Marine Surveys and Technology,2004,16,1,1_19-1_27,https://cir.nii.ac.jp/crid/1390001204338894080,https://doi.org/10.11306/jsmst.16.1_19