The webapp provides for each item the link on ECB's website.
Speeches for : Jean-Claude Trichet where "four" appeared
2007-10-09 : Hearing at the Economic and Monetary Affairs Committee of the European Parliament2006-11-29 : The Process of Economic, Monetary and Financial Integration in Europe
2006-11-10 : Closing address at the Fourth ECB Central Banking Conference on The role of Money and Monetary Policy in the Twenty-first Century
2006-01-12 : Introductory statement with Q&A
2005-03-03 : Introductory statement with Q&A
2004-10-20 : Press briefing on the ECB Convergence Report