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@BOOK{vanderAalst:714902,
      author       = {van der Aalst, Wil M. P.},
      title        = {{T}he modelling and analysis of queueing systems with
                      {QNM}-{E}x{S}pect},
      address      = {Eindhoven University of Technology, Eindhoven},
      reportid     = {RWTH-CONV-222885},
      year         = {1991},
      typ          = {PUB:(DE-HGF)3},
      url          = {https://publications.rwth-aachen.de/record/714902},
}