@article{gull2011,
  author = {Gull, E. and Millis, A. J. and Lichtenstein, A. I. and Rubtsov, A. N. and Troyer, M. and Werner, P.},
  title = {{Continuous-Time Monte Carlo Methods for Quantum Impurity Models}},
  journal = {Reviews of Modern Physics},
  volume = {83},
  number = {2},
  pages = {349--404},
  year = {2011},
  doi = {10.1103/RevModPhys.83.349}
}