Identification of a complete sample of northern ROSAT All-Sky Survey X-ray sources

Identification of a complete sample of northern ROSAT All-Sky Survey X-ray sources

F.-J. Zickgraf, J. Krautter, S. Reffert, J. M. Alcalá, R. Mujica, E. Covino, and M. F. Sterzik.

A&A 433,151