Detailed study of the X-ray and optical/UV orbital ephemeris of X1822–371R. Iaria, T. Di Salvo, L. Burderi, A. D’Aí, A. Papitto, A. Riggio and N. R. RobbaA&A, 534 (2011) A85DOI: https://doi.org/10.1051/0004-6361/201117334
