The webapp provides for each item the link on ECB's website.
Speeches for : Jean-Claude Trichet where "constitution" appeared
2005-04-07 : Introductory statement with Q&A2003-12-01 : Testimony before the Committee on Economic and Monetary Affairs of the European Parliament, with the President of the European Central Bank, in accordance with Article 113(3) of the Treaty on European Union
2003-11-20 : Europe at the crossroads