On X-ray pulsations in β Cephei-type variablesL. M. Oskinova, H. Todt, D. P. Huenemoerder, S. Hubrig, R. Ignace, W.-R. Hamann and L. BalonaA&A, 577 (2015) A32DOI: https://doi.org/10.1051/0004-6361/201525908