Timing and spectral changes of the Be X-ray transient EXO 0531-6609.2 through high and low stateN. Rea, G. L. Israel, T. Di Salvo, L. Burderi and G. CocozzaA&A, 421 1 (2004) 235-239DOI: https://doi.org/10.1051/0004-6361:20035685