@misc{CaliendoHujerThomsen2005,
  author    = {Marco Caliendo and Reinhard Hujer and Stephan L. Thomsen},
  title     = {Identifying effect heterogeneity to improve the effiency of job creation schemes in Germany?},
  booktitle = {Zentrum f{\"u}r Europ{\"a}ische Wirtschaftsforschung: Discussion paper ; No. [20]05,21 : Labour economics, human resources and social policy},
  institution = {Wirtschaftswissenschaften},
  type      = {workingpaper},
  year        = {2005},
}