@inproceedings{ijcai2005p148,
  title     = {The Complexity of Quantified Constraint Satisfaction Problems under Structural Restrictions},
  author    = {Gottlob, Georg and Greco, Gianluigi and Scarcello, Francesco},
  booktitle = {Proceedings of the Nineteenth International Joint Conference on
               Artificial Intelligence, {IJCAI-05}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  pages     = {150--154},
  year      = {2005},
  url       = {https://ijcai.org/proceedings/2005/148},
}