@inproceedings{Reeson:07aaai,
  AUTHOR =  {Christopher G. Reeson and  Kai-Chen Huang and  Kenneth M. Bayer and Berthe Y. Choueiry},
  TITLE = {{An Interactive Constraint-Based Approach to Sudoku}},
  YEAR = 2007,
  BOOKTITLE = {Conference on Artificial Intelligence (AAAI 2007)},
  ADDRESS = {Vancouver, Canada},
  PAGES = {1976--1977},
  KEYWORDS = {}}