Solar source of energetic particles in interplanetary space during the 2006 December 13 eventC. Li, Y. Dai, J.-C. Vial, C. J. Owen, S. A. Matthews, Y. H. Tang, C. Fang and A. N. FazakerleyA&A, 503 3 (2009) 1013-1021DOI: https://doi.org/10.1051/0004-6361/200911986