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 Woese and S Winker and R R Gutell,"Architecture of ribosomal RNA: constraints on the sequence of ""tetra-loops"".",Proceedings of the National Academy of Sciences,0027-8424,Proceedings of the National Academy of Sciences,1990-11,87,21,8467-8471,https://cir.nii.ac.jp/crid/1361699994506724608,https://doi.org/10.1073/pnas.87.21.8467