@InProceedings{het02,
  author =      "Niels Hallenberg and Martin Elsman and Mads Tofte",
  title =       "Combining Region Inference and Garbage Collection",
  booktitle =   "ACM SIGPLAN Conference on Programming
                 Language Design and Implementation (PLDI'02)",
  year =        "2002",
  publisher =   "ACM Press",
  note =        "Berlin, Germany",
  month =       "June"
}