XMM-Newton observations of the cluster of galaxies Sérsic 159-03 J. S. Kaastra, C. Ferrigno, T. Tamura, F. B. S. Paerels, J. R. Peterson and J. P. D. Mittaz A&A, 365 1 (2001) L99-L103 Published online: 15 January 2001 DOI: 10.1051/0004-6361:20000041