@misc{stephen_2000, title={Interests and integration: Market liberalization, public opinion, and European Union}, volume={62}, number={3}, journal={Journal of Politics}, author={Stephen, R.}, year={2000}, pages={965–967} }
 @book{stephen_2000, title={Vehicle of influence: Building a European car market}, ISBN={0472111213}, publisher={Ann Arbor: University of Michigan Press}, author={Stephen, R. F.}, year={2000} }