The webapp provides for each item the link on ECB's website.
Speeches for : Jean-Claude Trichet where "signal" appeared
2009-12-10 : Interview with De Tijd and L'Echo2009-12-03 : Introductory statement with the Q&A
2006-12-20 : Testimony at the Economic and Monetary Affairs Committee of the European Parliament
2006-11-10 : Panel Intervention at the 4th ECB Central Banking Conference on “The role of money: Money and monetary policy in the 21st century”
2006-03-15 : Interview with Der Standard, De Standaard, La Tribune, Süddeutsche Zeitung and L'Echo
2005-04-07 : Introductory statement with Q&A
2004-06-22 : Supply side economics and monetary policy
2004-05-06 : Introductory statement with Q&A
2004-04-01 : Introductory statement with Q&A