Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) URUSHIBARA-YOSHINO Kazuko and YOSHINO Noriyasu and UEHARA Hiroshi,"Relationship between Carbon Dioxide and Number of Tourists in the Abukuma Cave, Northeast Japan","Geographical Review of Japa,. Ser. A, Chirigaku Hyoron",00167444,The Association of Japanese Geographers,1998,71,7,527-536,https://cir.nii.ac.jp/crid/1390282680401411584,https://doi.org/10.4157/grj1984a.71.7_527