@misc{shant:08wn,
  AUTHOR = {Shant Karakashian},
  TITLE = {{Algorithm for Removing Redundant Edges in the Dual Graph of a
    Non-Binary CSP}}, 
  MONTH =  nov,
  YEAR = 2008,
  HOWPUBLISHED = {Working Note of the Constraint Systems Laboratory (UNL)},
  NOTE = {November, 2008}}