@inproceedings{DBLP:conf/ecsqaru/MileoS07,
  author = {Mileo, Alessandra and Schaub, Torsten},
  title = {Qualitative Constraint Enforcement in Advanced Policy Specification},
  booktitle = {{ECSQARU}},
  series = {Lecture Notes in Computer Science},
  volume = {4724},
  pages = {695--706},
  publisher = {Springer},
  year = {2007}
}