Cornelisse, R.; D'Avanzo, P.; Muñoz-Darias, T.; Campana, S.; Casares, J.; Charles, P. A.; Steeghs, D.; Israel, G.; Stella, L.

Phase-resolved spectroscopy of the accreting millisecond X-ray pulsar SAX J1808.4-3658 during the 2008 outburst

Astronomy and Astrophysics vol. 495, pg. L1 (2009)