@inproceedings{zyzzyva,
  author    = {R. Kotla and A. Clement and E. Wong and L. Alvisi and M. Dahlin},
  title     = {Zyzzyva: Speculative Byzantine Fault Tolerance},
  booktitle = {Proc. of the ACM Symposium on Operating Systems Principles (SOSP'07)},
  publisher = {ACM},
  address   = {Stevenson, WA},
  month     = oct,
  year      = {2007},
  pdfurl    = "http://www.disi.unitn.it/~montreso/ds/syllabus/papers/aardvark.pdf"
}