@article{oai:jaxa.repo.nii.ac.jp:00023339, author = {坪井, 昌人 and TSUBOI, Masato and MIYAZAKI, Atsushi and OKUMURA, Sachiko K.}, journal = {PASJ: Publications of the Astronomical Society of Japan}, month = {}, note = {資料番号: PAIS08313000}, pages = {29--37}, title = {A Galactic Center 50-kms(exp -1) Molecular Cloud with an Expanding Shell}, volume = {61}, year = {2009} }