@article{DBLP:journals/questa/Casale08,
  author    = {Giuliano Casale},
  title     = {A note on stable flow-equivalent aggregation in closed networks},
  journal   = {Queueing Syst. Theory Appl.},
  volume    = {60},
  number    = {3-4},
  pages     = {193--202},
  year      = {2008},
  doi       = {10.1007/s11134-008-9093-6}
}