@article{CKV09,
  author    = {George Christodoulou and
               Elias Koutsoupias and
               Angelina Vidali},
  title     = {A Lower Bound for Scheduling Mechanisms},
  journal   = {Algorithmica},
  volume    = {55},
  number    = {4},
  year      = {2009},
  pages     = {729-740},
  ee        = {http://dx.doi.org/10.1007/s00453-008-9165-3},
  notes	    = {An earlier version appeared in SODA 2007}
}

@string{SODA07 = {Proceedings of the Eighteenth Annual ACM-SIAM Symposium
               on Discrete Algorithms (SODA)}}

@inproceedings{CKV07,
  author =       {G. Christodoulou and E. Koutsoupias and A. Vidali},
  title =        {A lower bound for scheduling mechanisms.},
  booktitle = {SODA},
  month     = {7--9 } #jan,
  year      = {2007},
  pages     = {1163-1170},
  address   = {New Orleans, Louisiana, USA},
  ee        = {http://doi.acm.org/10.1145/1283383.1283508},
}