@article{oai:kumadai.repo.nii.ac.jp:00027509, author = {麻生, 弘幸}, journal = {熊本地学会誌}, month = {Nov}, note = {application/pdf, 論文(Article)}, pages = {16--16}, title = {阿蘇火山中央火口丘群の地質}, volume = {92}, year = {1989} }