@InProceedings{LNTpdps01,
  author =       {Tak-Wah Lam and Tsuen-Wan Ngan and Isaac Kar-Keung To},
  title =        {On the Speed Requirement for Optimal Deadline Scheduling in Overloaded Systems},
  booktitle =    {the 15th International Parallel and Distributed Processing Symposium},
  pages =        {2173--2177},
  year =         2001
}