@article{DBLP:journals/ior/BudgeIE09,
  author    = {Susan Budge and
               Armann Ingolfsson and
               Erhan Erkut},
  title     = {Technical Note - Approximating Vehicle Dispatch Probabilities
               for Emergency Service Systems with Location-Specific Service
               Times and Multiple Units per Location},
  journal   = {Operations Research},
  volume    = {57},
  number    = {1},
  year      = {2009},
  pages     = {251-255},
  ee        = {http://dx.doi.org/10.1287/opre.1080.0591},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}