@article{Mumenthaler_van den Brekel_2016, title={Delphi technique: the methods behind the Horizon Report}, volume={11}, url={http://ojs.eahil.eu/ojs/index.php/JEAHIL/article/view/57}, number={3}, journal={Journal of EAHIL}, author={Mumenthaler, Rudolf and van den Brekel, Guus}, year={2016}, month={Mar.}