The webapp provides for each item the link on ECB's website.
Speeches for : Jean-Claude Trichet where "announcement" appeared
2011-03-11 : Decision on a memorial commemorating the deportation of Jewish citizens from the Grossmarkthalle in Frankfurt am Main2008-11-18 : Central banks and the public: the importance of communication
2004-09-27 : Current issues on the European Central Bank and the euro
2004-07-09 : The current state of the European economy and the ECB's monetary policy concept