著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) HILTON D. R. and RAMÍREZ C. J. and MORA-AMADOR R. and FISCHER T. P. and FÜRI E. and BARRY P. H. and SHAW A. M.,"Monitoring of temporal and spatial variations in fumarole helium and carbon dioxide characteristics at Poas and Turrialba volcanoes, Costa Rica (2001-2009)",GEOCHEMICAL JOURNAL,00167002,一般社団法人日本地球化学会,2010,44,5,431-440,https://cir.nii.ac.jp/crid/1390282679531340672,https://doi.org/10.2343/geochemj.1.0085