@workingPaper{BehrensEmrichHämmerlePierdzioch_2017, title={Match quality, crowding out, and crowding in: empirical evidence for German sports clubs}, author={Behrens, Christoph and Emrich, Eike and Hämmerle, Martin and Pierdzioch, Christian}, editor={Emrich, Eike and Pierdzioch, Christian and Klein, Markus}, doi={http://dx.doi.org/10.22028/D291-27045}, adress={Saarbrücken}, publisher={Europäisches Institut für Sozioökonomie e.V.}, year={2017} }