X-ray pulsations from the region of the supergiant fast X-ray transient IGR J17544−2619 S. P. Drave, A. J. Bird, L. J. Townsend, A. B. Hill, V. A. McBride, V. Sguera, A. Bazzano and D. J. Clark A&A, 539 (2012) A21 Published online: 21 February 2012 DOI: 10.1051/0004-6361/201117947