Giant outburst from the supergiant fast X-ray transient IGR J17544−2619: accretion from a transient disc?P. Romano, E. Bozzo, V. Mangano, P. Esposito, G. Israel, A. Tiengo, S. Campana, L. Ducci, C. Ferrigno and J. A. KenneaA&A, 576 (2015) L4DOI: https://doi.org/10.1051/0004-6361/201525749