XMM-Newton long-look observation of the narrow-line Seyfert 1 galaxy PKS 0558–504 - II. Timing analysisI. E. Papadakis, W. Brinkmann, M. Gliozzi and C. RaethA&A, 518 (2010) A28DOI: https://doi.org/10.1051/0004-6361/201014712