*Huggler, Justin; Crisp, James (December 7, 2017). [http://www.telegraph.co.uk/news/2017/12/07/german-spd-leader-martinschulz-seeks-united-states-europe-2025/ 'United States of Europe by 2025': German SPD leader names his price for joining Merkel coalition]. ''The Telegraph''. Retrieved December 9, 2017. | *Huggler, Justin; Crisp, James (December 7, 2017). [http://www.telegraph.co.uk/news/2017/12/07/german-spd-leader-martinschulz-seeks-united-states-europe-2025/ 'United States of Europe by 2025': German SPD leader names his price for joining Merkel coalition]. ''The Telegraph''. Retrieved December 9, 2017. |