@TechReport{MRR05,
  author      = {Daniel M\"olle and Stefan Richter and Peter Rossmanith},
  title       = {A Faster Algorithm for the Steiner Tree Problem},
  institution = {RWTH Aachen},
  year        =	2005,
  number      =	{AIB-04-2005},
  month       =	mar,
  url         = {http://aib.informatik.rwth-aachen.de/2005/2005-04.ps.gz},
}