@article{gull2011cpc,
  author = {Gull, E. and Werner, P. and Fuchs, S. and Surer, B. and Pruschke, T. and Troyer, M.},
  title = {{Continuous-Time Quantum Monte Carlo Impurity Solvers}},
  journal = {Computer Physics Communications},
  volume = {182},
  number = {4},
  pages = {1078--1082},
  year = {2011},
  doi = {10.1016/j.cpc.2010.12.050}
}