@article{oai:jaxa.repo.nii.ac.jp:00028243,
 author = {Balthasar, H. and Beck, C. and Gomory, P. and Muglach, K. and Puschmann, K. G. and 清水, 敏文 and Verma, M. and Balthasar, H. and Beck, C. and Gomory, P. and Muglach, K. and Puschmann, K. G. and Shimizu, Toshifumi and Verma, M.},
 issue = {2},
 journal = {Central European Astrophysical Bulletin},
 month = {},
 note = {資料番号: SA1004951000},
 pages = {435--446},
 title = {Properties of a Decaying Sunspot},
 volume = {37},
 year = {2013}
}