@inproceedings{bib:Au07qpolicy,
        Author = {Tsz-Chiu Au and Dana Nau},
        Booktitle = {Proceedings of the 2007 IEEE Symposium on Computational Intelligence and Data Mining (CIDM)},
        Pages = {243--250},
        Title = {Reactive Query Policies: A Formalism for Planning with Volatile External Information},
        Year = {2007}}