XMM-Newton and Chandra observations of the globular cluster NGC 6388 A. A. Nucita, F. De Paolis, G. Ingrosso, S. Carpano and M. Guainazzi A&A, 478 3 (2008) 763-768 Published online: 12 December 2007 DOI: 10.1051/0004-6361:20078850