@article{CaliendoMahlstedtMitnik2017,
  author    = {Caliendo, Marco and Mahlstedt, Robert and Mitnik, Oscar A.},
  title     = {Unobservable, but unimportant? The relevance of usually unobserved variables for the evaluation of labor market policies},
  series = {Labour economics : an international journal},
  volume    = {46},
  journal   = {Labour economics : an international journal},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0927-5371},
  doi       = {10.1016/j.labeco.2017.02.001},
  pages     = {14 -- 25},
  year      = {2017},
  language  = {en}
}