@ARTICLE{Feulner2006b,
   author = {{Feulner}, G. and {Hopp}, U. and {Botzler}, C.~S.},
    title = "{Integrated specific star formation rates of galaxies, groups, and clusters: a continuous upper limit with stellar mass?}",
  journal = {Astronomy \& Astrophysics},
     year = 2006,
    month = may,
   volume = 451,
    pages = {L13-L16},
      doi = {10.1051/0004-6361:20065082},
}