@techreport{RR-04-08,
  title = "The Complexity of Constraint Satisfaction: An Algebraic Approach",
  author = "Andrei Krokhin and Andrei Bulatov and Peter Jeavons",
  year = "2004",
  institution = "Oxford University Computing Laboratory",
  month = "May",
  number = "RR-04-08",
}