The webapp provides for each item the link on ECB's website.
Speeches for : Jean-Claude Trichet where "sustained" appeared
2010-12-13 : Introductory remarks at the International Club of Economic Journalists2008-09-05 : Risk and the Macro-economy
2007-10-09 : Hearing at the Economic and Monetary Affairs Committee of the European Parliament
2006-03-31 : Economic Integration in the Euro Area
2006-02-06 : Monetary Policy and Economic Prospects in the Euro Area
2005-11-24 : Interview in Die Welt, La Stampa and Libération
2004-10-20 : Press briefing on the ECB Convergence Report