A detailed X-ray investigation of ζ Puppis - IV. Further characterization of the variabilityYaël Nazé, Tahina Ramiaramanantsoa, Ian R. Stevens, Ian D. Howarth and Anthony F. J. MoffatA&A, 609 (2018) A81DOI: https://doi.org/10.1051/0004-6361/201730729