@article{BueckervanKampenKraemer2013,
  author    = {B{\"u}cker, Michael and van Kampen, Maarten and Kr{\"a}mer, Walter},
  title     = {Reject inference in consumer credit scoring with nonignorable missing data},
  series = {Journal of Banking \& Finance},
  volume    = {37},
  journal   = {Journal of Banking \& Finance},
  number    = {3},
  doi       = {10.1016/j.jbankfin.2012.11.002},
  pages     = {1040 -- 1045},
  year      = {2013},
  language  = {en}
}
@article{BueckerKraemerArnold2012,
  author    = {B{\"u}cker, Michael and Kr{\"a}mer, Walter and Arnold, Matthias},
  title     = {A Hausman test for non-ignorability},
  series = {Economics Letters},
  volume    = {114},
  journal   = {Economics Letters},
  number    = {1},
  doi       = {10.1016/j.econlet.2011.08.025},
  pages     = {23 -- 25},
  year      = {2012},
  language  = {en}
}
@article{KraemerBuecker2011,
  author    = {Kr{\"a}mer, Walter and B{\"u}cker, Michael},
  title     = {Probleme des Qualit{\"a}tsvergleichs von Kreditausfallprognosen},
  series = {AStA Wirtschafts- und Sozialstatistisches Archiv},
  volume    = {5},
  journal   = {AStA Wirtschafts- und Sozialstatistisches Archiv},
  number    = {1},
  doi       = {10.1007/s11943-011-0096-0},
  pages     = {39 -- 58},
  year      = {2011},
  language  = {de}
}
@article{BueckerKraemer2011,
  author    = {B{\"u}cker, Michael and Kr{\"a}mer, Walter},
  title     = {Statistischer Qualit{\"a}tsvergleich von Kreditausfallprognosen},
  series = {Discussion Paper SFB 823},
  volume    = {30},
  journal   = {Discussion Paper SFB 823},
  year      = {2011},
  language  = {de}
}
@article{BueckerKraemer2011,
  author    = {B{\"u}cker, Michael and Kr{\"a}mer, Walter},
  title     = {Reject inference in consumer credit scoring with nonignorable missing data},
  series = {Discussion Paper SFB 823},
  volume    = {1},
  journal   = {Discussion Paper SFB 823},
  year      = {2011},
  language  = {en}
}