@TechReport{Blumensath01,
  author =       "Achim Blumensath",
  title =        "Axiomatising Tree-interpretable Structures",
  institution =  "RWTH Aachen",
  year =         "2001",
  number =       "AIB-10-2001",
  month =        dec,
  url =          "http://aib.informatik.rwth-aachen.de/2001/2001-10.ps.gz",
}