@inproceedings{mcnett07usher,
  author = {Marvin McNett and Diwaker Gupta and Amin Vahdat and Geoffrey M. Voelker},
  title = {{Usher: An Extensible Framework for Managing Clusters of Virtual Machines}},
  booktitle = {Proceedings of the 21st Large Installation System Administration Conference (LISA)},
  year = {2007},
  month = {November},
}