@misc{oai:jaxa.repo.nii.ac.jp:00030623, author = {北本, 俊二 and 常深, 博 and 宮本, 重徳 and Roussel-Dupre, Diane and Kitamoto, Shunji and Tsunemi, Hiroshi and Miyamoto, Sigenori and Roussel-Dupre, Diane}, month = {Aug}, note = {Note: Accepted for publication in the Astrophysical Journal, 1993, January 20, 資料番号: SA8000377000}, title = {The Unstable Long Term Periodicity of Aql X-1}, year = {1992} }