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) C. R. O'Dell and G. J. Ferland and W. J. Henney and M. Peimbert,"STUDIES OF NGC 6720 WITH CALIBRATED HST/WFC3 EMISSION-LINE FILTER IMAGES. II. PHYSICAL CONDITIONS* ,†",The Astronomical Journal,0004-6256,American Astronomical Society,2013-02-28,145,4,93,https://cir.nii.ac.jp/crid/1361418520327968512,https://doi.org/10.1088/0004-6256/145/4/93