2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/8409This is a review of recent observational and theoretical developments related to accreting neutron stars and black holes in binary systems.42 pages; 24 figures. To appear in "Compact Stellar X-ray Sources", eds. W.H.G. Lewin and M. van der KlisAstrophysicstext