@inproceedings{ijcai2009p57,
  title     = {Flexible Procurement of Services with Uncertain Durations using Redundancy},
  author    = {Stein, Sebastian and Gerding, Enrico H. and Rogers, Alex and Larson, Kate and Jennings, Nicholas R.},
  booktitle = {Proceedings of the Twenty-First International Joint Conference on
               Artificial Intelligence, {IJCAI-09}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Hiroaki Kitano},
  pages     = {292--297},
  year      = {2009},
  url       = {https://ijcai.org/proceedings/2009/57},
}