Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Koyama S.,Change of Weight of Lumber due to Absorption of Water-II,The Journal of the Nautical Society of Japan,04666607,Japan Institute of Navigation,1962,28,0,61-68,https://cir.nii.ac.jp/crid/1390001206096286720,https://doi.org/10.9749/jina.28.0_61