Possible non-thermal nature of the soft-excess emission in the cluster of galaxies Sérsic 159-03N. Werner, J. S. Kaastra, Y. Takei, R. Lieu, J. Vink and T. TamuraA&A, 468 3 (2007) 849-858DOI: https://doi.org/10.1051/0004-6361:20077211
