A
[AS04] Robert Airapetyan and Thorsten Schneider. Protecting Applications with Petri Nets. The Code Breaker's Journal 1(1). 2004. 
@article{cbj1(1)-AS,
  author =              {Airapetyan, Robert and Schneider, Thorsten},
  title =               {Protecting Applications with {P}etri Nets},
  journal =             {The Code Breaker's Journal},
  volume =              {1},
  number =              {1},
  year =                {2004},
}
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