The webapp provides for each item the link on ECB's website.
Speeches for : Jean-Claude Trichet where "aims" appeared
2011-08-29 : Hearing at the Committee on Economic and Monetary Affairs of the European Parliament2007-05-22 : The role of research in central banks and at the ECB
2005-05-31 : Press briefing on the ECB Financial Stability Review - June 2005
2004-12-15 : Press briefing on the “ECB Financial Stability Review“