@unpublished{EngbertScheffczykKrampeetal.2007,
  author  = {Ralf Engbert and Christian Scheffczyk and Ralf-Thomas Krampe and Mikhael Rosenblum and J{\"u}rgen Kurths and Reinhold Kliegl},
  title   = {Tempo-induced transitions in polyrhythmic hand movements},
  institution = {Institut f{\"u}r Physik und Astronomie},
  series    = {NLD Preprints},
  number    = {41},
  year    = {2007},
}