@book{VossenWitt2006,
  author    = {Gottfried Vossen and Kurt-Ulrich Witt},
  title     = {Grundkurs theoretische Informatik},
  edition   = {4., verbesserte und erweiterte Auflage},
  publisher = {Vieweg},
  address   = {Wiesbaden},
  isbn      = {3-8348-0153-4},
  year      = {2006},
  language  = {de}
}