Soft X-ray emission lines in the afterglow spectrum of GRB 011211: A detailed XMM-Newton analysisJ. N. Reeves, D. Watson, J. P. Osborne, K. A. Pounds and P. T. O'BrienA&A, 403 2 (2003) 463-472DOI: https://doi.org/10.1051/0004-6361:20030204