The Euro as a reserve currency

http://www.europeaninstitute.org/index.php/193-european-affairs/ea-february-2014/1847-the-euro-at-age-15-is-it-a-reserve-currency-yet

http://ec.europa.eu/economy_finance/euro/world/index_en.htm

http://www.cer.org.uk/insights/euro-world%E2%80%99s-reserve-currency

https://en.wikipedia.org/wiki/Euro#Use_as_reserve_currency

http://www.bloomberg.com/news/articles/2015-04-09/euro-s-reserve-status-jeopardized-as-central-banks-dump-holdings

How EU citizens see the European Union

http://www.nytimes.com/2015/06/03/world/europe/support-for-the-european-union-is-rising-survey-suggests.html?_r=0

http://www.pewglobal.org/2015/06/02/faith-in-european-project-reviving/

Compare with previous polls:

http://www.pewglobal.org/2014/05/12/a-fragile-rebound-for-eu-image-on-eve-of-european-parliament-elections/

http://www.pewglobal.org/2013/05/13/the-new-sick-man-of-europe-the-european-union/