@TECHREPORT{ReducingComplexityLargeEPC,
  author = {Polyvyanyy, Artem and Smirnov, Sergey and Weske, Mathias},
  title = {Reducing the Complexity of Large EPCs},
  institution = {Hasso-Plattner-Institute},
  year = {2008},
  number = {22}
}