Rodríguez-Pose, Andrés, Tobias Ketterer, and David Castells-Quintana. “Do We Follow the Money? The Drivers of Migration across Regions in the EU”. REGION 2, no. 2 (December 3, 2015): 27-45. Accessed May 25, 2020. https://openjournals.wu.ac.at/ojs/index.php/region/article/view/15.