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[LNZ04] Denis Lugiez, Peter Niebert, and Sarah Zennou. A partial order semantics approach to the clock explosion problem of timed automata. In TACAS'04, Lecture Notes in Computer Science 2988, pages 296-311. Springer-Verlag, March 2004. 
@inproceedings{tacas2004-LNZ,
  author =              {Lugiez, Denis and Niebert, Peter and Zennou, Sarah},
  title =               {A~partial order semantics approach to the clock
                         explosion problem of timed automata},
  editor =              {Jensen, Kurt and Podelski, Andreas},
  booktitle =           {{P}roceedings of the 10th {I}nternational
                         {C}onference on {T}ools and {A}lgorithms for
                         {C}onstruction and {A}nalysis of {S}ystems
                         ({TACAS}'04)},
  acronym =             {{TACAS}'04},
  publisher =           {Springer-Verlag},
  series =              {Lecture Notes in Computer Science},
  volume =              {2988},
  pages =               {296-311},
  year =                {2004},
  month =               mar,
}
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