@TechReport{Penaloza-LTCS-06-05,
  author =       {Rafael Penaloza},
  title =        {Pinpointing in Tableaus},
  institution =  {Chair for Automata Theory, Institute for Theoretical
                  Computer Science, Dresden University of Technology},
  year =         2006,
  type =         {LTCS-Report},
  number =       {LTCS-06-05},
  address =      {Germany},
  note =         {See
                  http://lat.inf.tu-dresden.de/research/reports.html.},
}