On Luminosity and morphology segregation in the Southern Sky Redshift   Survey 2
  The results are still valid, however this letter is superceeded by a significantly extended version which is available at astro-ph/0003358 and is scheduled for publication in the ApJ Dec. 10, 2000. We have withdrawn this letter to avoid confusion. 
Claus Beisbart, Martin Kerscher (University of Munich)