@TECHREPORT{WieringaBroersenPSMT1998,
    author =        {R.J. Wieringa and J.M. Broersen},
    title =         {Minimal Transition System Semantics for Lightweight Class- and Behavior Diagrams},
    number =        {TUM-I9803},
    year =          {1998},
    institution =   {Institut fur informatik, technische universitat munchen},
    note =          {Proceedings PSMT-Workshop om Precise Semantics for Software Modeling Techniques}
}