A hot white dwarf luminosity function from the Sloan Digital Sky Survey J. Krzesinski, S. J. Kleinman, A. Nitta, S. Hügelmeyer, S. Dreizler, J. Liebert and H. Harris A&A, 508 1 (2009) 339-344 Published online: 01 October 2009 DOI: 10.1051/0004-6361/200912094