The webapp provides for each item the link on ECB's website.
Speeches for : Jurgen Stark where "enhanced" appeared
2011-06-27 : Press briefing on new monetary and financial statistics2011-05-11 : The future of the international monetary system: Lessons from 1971 for Europe and the world in light of past and present experience
2009-11-09 : Monetary Policy before, during and after the financial crisis