XMM-Newton monitoring of X-ray variability in the quasar PKS 0558-504M. Gliozzi, W. Brinkmann, P. T. O'Brien, J. N. Reeves, K. A. Pounds, M. Trifoglio and F. GianottiA&A, 365 1 (2001) L128-L133DOI: https://doi.org/10.1051/0004-6361:20000207
