Article ISI
The Astrophysical Journal  (2005)

The Calán-Yale Deep Extragalactic Research (CYDER) Survey: Optical Properties and Deep Spectroscopy of Serendipitous X-Ray Sources

Treister, Ezequiel; Castander, Francisco J.; Maccarone, Thomas J.; Gawiser, Eric; Coppi, Paolo S.; Urry, C. Megan; Maza, José; Herrera, David; Gonzalez, Valentino; Montoya, Carlos; Pineda, Pedro