@article{RomanoThielKurthsetal.2009,
  author    = {Maria Carmen Romano and Marco Thiel and J{\"u}rgen Kurths and Konstantin Mergenthaler and Ralf Engbert},
  title     = {Hypothesis test for synchronization : twin surrogates revisited},
  doi       = {10.1063/1.3072784},
  url       = {http://ojps.aip.org/chaos/},
  year      = {2009},
}