Swift discovery of the orbital period of the high mass X-ray binary IGR J015712−7259 in the Small Magellanic CloudA. Segreto, G. Cusumano, V. La Parola, A. D’Aì, N. Masetti and P. D’AvanzoA&A, 557 (2013) A113DOI: https://doi.org/10.1051/0004-6361/201321897
