@TechReport{SmolkaSteffen92,
  author =    "S. A. Smolka and B. Steffen",
  title =     "Priority as {E}xtremal {P}robability",
  institution = "RWTH Aachen",
  year =      "1992",
  number =    "AIB-04-1992",
  url =       "http://aib.informatik.rwth-aachen.de/1992/1992-04.ps.gz",
}