Sazonov, S. Y., Lutovinov, A. A., Churazov, E. M., & Sunyaev, R. A. (2006). Constraints on the late X-ray radiation from the low-energy gamma-ray burst of December 3, 2003: INTEGRAL data. Astronomy Letters - A Journal of Astronomy and Space Astrophysics, 32(5), 297-301. doi:10.1134/S1063773706050021.