“Analyzing the Elements of X-Ray Emission Spectrum of C 1999 S4 (LINEAR) and 9p Tempel 1 Comets”. Iraqi Journal of Science 65, no. 7 (July 30, 2024): 4092–4101. Accessed November 22, 2024. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/9468.