Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) NAKAI Tatsuo,"Physiographic Unit for Understanding the Spatial Structure of the Coral Reef Ecosystem at the Yoron Island Fringing Reef, Ryukyu Islands",Journal of Geography (Chigaku Zasshi),0022135X,Tokyo Geographical Society,2007,116,2,223-242,https://cir.nii.ac.jp/crid/1390282679206971264,https://doi.org/10.5026/jgeography.116.2_223