The webapp provides for each item the link on ECB's website.
Speeches for : Jean-Claude Trichet where "studies" appeared
2011-06-01 : Making decisions in an uncertain world2008-09-05 : Risk and the Macro-economy
2007-05-22 : The role of research in central banks and at the ECB
2006-03-30 : EMU and the euro: successes and challenges
2006-01-20 : Growth performance, labour productivity and structural reforms in the euro area
2003-11-20 : The ECB's monetary policy strategy after the evaluation and clarification of May 2003