Signature of the presence of a third body orbiting around XB 1916-053 R. Iaria, T. Di Salvo, A. F. Gambino, M. Del Santo, P. Romano, M. Matranga, C. G. Galiano, F. Scarano, A. Riggio, A. Sanna et al. (2 more) A&A, 582 (2015) A32 Published online: 01 October 2015 DOI: 10.1051/0004-6361/201526500