@Article{     dixozcsub04,
  author    = {J\"{u}rgen Dix and Fatma Ozcan and VS Subrahmanian},
  title     = {Improving performance of heterogenous agents},
  journal   = {Annals of Mathematics and AI},
  year      = 2004,
  volume    = {},
  number    = {},
  pages     = {}
}