@Article{SCI:Li2011b,
  author =    "J. Li and J. Li and D. Xiu",
  title =     "An Efficient Surrogate-based Method for Computing
              Rare Failure Probability",
  journal =   "Journal of Computational Physics",
  volume =    "230",
  number =    "24",
  pages =     "8683--8697",
  year =      "2011",
  doi =       "10.1016/j.jcp.2011.08.008",
  keywords =  "Rare events, Failure probability, Importance
              sampling, Cross-entropy",
  url =       "http://www.sci.utah.edu/publications/li11/Li_JCP2011.pdf",
}