Galaxy morphology, luminosity, and environment in the SDSS DR7 E. Tempel, E. Saar, L. J. Liivamägi, A. Tamm, J. Einasto, M. Einasto and V. Müller A&A, 529 (2011) A53 Published online: 31 March 2011 DOI: 10.1051/0004-6361/201016196