The webapp provides for each item the link on ECB's website.
Speeches for : Jurgen Stark where "pros" appeared
2011-05-11 : The future of the international monetary system: Lessons from 1971 for Europe and the world in light of past and present experience2008-01-22 : Does the euro area need an economic government?
2006-11-20 : Economic and monetary challenges of euro area enlargement