@workingPaper{HouyFrankNiesenFettkeLoos_2014, title={On the usage of theories in the field of Wirtschaftsinformatik : a quantitative literature analysis}, author={Houy, Constantin and Frank, Johannes and Niesen, Tim and Fettke, Peter and Loos, Peter}, doi={http://dx.doi.org/10.22028/D291-25427}, year={2014} }