@INPROCEEDINGS{COPLAS11,
  author={Ignacio Casti{\~{n}}eiras and Fernando S\'aenz-P\'erez},
  title={{A CFLP Approach for Modeling and Solving a Real Life Employee
Timetabling Problem}},
  booktitle={{ICAPS 2011 Workshop on Constraint Satisfaction Techniques
for Planning and Scheduling Problems}},
  year={2011},
  pages={63--70}}