X-ray pulsations from the region of the supergiant fast X-ray transient IGR J17544−2619S. P. Drave, A. J. Bird, L. J. Townsend, A. B. Hill, V. A. McBride, V. Sguera, A. Bazzano and D. J. ClarkA&A, 539 (2012) A21DOI: https://doi.org/10.1051/0004-6361/201117947