Plotkin, R. M., S. F. Anderson, P. B. Hall, B. Margon, W. Voges, D. P. Schneider, G. Stinson and D. G. York: A large sample of BL Lac objects from the SDSS and FIRST. In: Astronomical Journal 135, 6, 2453-2469 (2008).
doi: 10.1088/0004-6256/135/6/2453
Anderson, S. F., B. Margon, W. Voges, R. M. Plotkin, D. Syphers, D. Haggard, M. J. Collinge, J. Meyer, M. A. Strauss, M. A. Agüeros, P. B. Hall, L. Homer, Ž. Ivezić, G. T. Richards, M. W. Richmond, D. P. Schneider, G. Stinson, D. E. Vanden Berk and D. G. York: A large, uniform sample of X-ray-emitting active galactic nuclei from the ROSAT all sky and sloan digital sky surveys: the data release 5 sample. In: Astronomical Journal 133, 1, 313-329 (2007).
doi: 10.1086/509765
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