Active galactic nuclei in the sloan digital sky survey. II. Emission-line luminosity function

Lei Hao, A. Strauss, Xiaohui Fan, Christy A. Tremonti, David J. Schlegel, Timothy M. Heckman, Guinevere Kauffmann, Michael R. Blanton, James E. Gunn, Patrick B. Hall, Željko Ivezić, Gillian R. Knapp, Julian H. Krolik, Robert H. Lupton, Gordon T. Richards, Donald P. Schneider, Iskra V. Strateva, Nadia L. Zakamska, J. Brinkmann, Gyula P. Szokoly