The webapp provides for each item the link on ECB's website.
Speeches for : Jean-Claude Trichet where "progressively" appeared
2010-07-08 : Introductory statement with Q&A2007-11-08 : Introductory statement with Q&A
2006-07-06 : Introductory statement with Q&A
2006-02-06 : Monetary Policy and Economic Prospects in the Euro Area
2005-05-04 : Introductory statement with Q&A