@article{oai:jaxa.repo.nii.ac.jp:00025236, author = {高橋, 一輝 and 井上, 一 and 堂谷, 忠靖 and Takahashi, Kazuki and Inoue, Hajime and Dotani, Tadayasu}, issue = {6}, journal = {PASJ: Publications of the Astronomical Society of Japan}, month = {Dec}, note = {Accepted: 2001-09-05, 資料番号: SA1001938000}, pages = {1171--1177}, title = {Spectral Variations of Cyg X-1 in the Hard State Studied with ASCA Data}, volume = {53}, year = {2001} }