
https://www.ipg-journal.de/regionen/europa/artikel/detail/wind-in-ihren-segeln-4625/

http://www.radiofree.org/us/why-diemuk-shouldnt-take-a-precise-position-on-the-brexit-negotiations-or-why-britain-is-screwed/

http://www.cesifo-group.de/ifoHome/publications/working-papers/CESifoWP/CESifoWPdetails?wp_num=6460&CESifoWP.search=+