Morihana, Kumiko, Masahiro Tsujimoto, and Ken Ebisawa. “X-Ray and Near-Infrared Spectroscopy of Dim X-Ray Point Sources Constituting the Galactic Ridge X-Ray Emission”. Acta Polytechnica CTU Proceedings 1, no. 1 (December 4, 2014): 222–226. Accessed April 19, 2024. https://ojs.cvut.cz/ojs/index.php/APP/article/view/2393.