@article{montoya_griesel05,
  title   = {The {Earth System Model of Intermediate Complexity} {CLIM{\it BER}-3$\alpha$}. 
  {Part I}: description and performance for present day conditions},
  author  = {M. Montoya and A. Griesel and A. Levermann and J. Mignot and M. Hofmann and A. Ganopolski and S. Rahmstorf},
  journal = {Climate Dynamics},
  year    = {2005},
  volume  = {25},
  pages   = {237-263}}