@incollection{BastianHensenLenzmannetal.2010,
  author    = {Bastian, Pascal and Hensen, Gregor and Lenzmann, Virginia and Lohmann, Anne and B{\"o}ttcher, Wolfgang and Ziegler, Holger},
  title     = {Evaluation Fr{\"u}her Hilfen - M{\"o}glichkeiten und Grenzen kontextbezogener Wirkungsevaluation},
  series = {Child Protection in Europe. Von den Nachbarn lernen. Kinderschutz qualifizieren / Hrsg. Regine M{\"u}ller, Dirk N{\"u}sken},
  booktitle = {Child Protection in Europe. Von den Nachbarn lernen. Kinderschutz qualifizieren / Hrsg. Regine M{\"u}ller, Dirk N{\"u}sken},
  publisher = {Waxmann},
  address   = {M{\"u}nster},
  publisher      = {FH M{\"u}nster - University of Applied Sciences},
  pages     = {169 -- 182},
  year      = {2010},
  language  = {de}
}
@article{BastianHensenLenzmannetal.2009,
  author    = {Bastian, Pascal and Hensen, Gregor and Lenzmann, Virginia and Lohmann, Anne and Ziegler, Holger and B{\"o}ttcher, Wolfgang},
  title     = {Evaluationsforschung zu Wirkungen und Mechanismen Fr{\"u}her Hilfen},
  series = {Soziale Passagen},
  volume    = {1},
  journal   = {Soziale Passagen},
  number    = {2},
  pages     = {259 -- 266},
  year      = {2009},
  language  = {de}
}