@misc{KlieglBates2011,
  author    = {Reinhold Kliegl and Douglas Bates},
  title     = {International Collaboration in Psychology is on the Rise},
  institution = {Extern},
  series    = {Zweitver{\"o}ffentlichungen der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe},
  number    = {paper 244},
  type      = {postprint},
  year        = {2011},
}