The webapp provides for each item the link on ECB's website.
Speeches for : Jean-Claude Trichet where "rigorously" appeared
2011-10-11 : Interview with Die Welt2011-06-30 : Hearing at the Committee on Economic and Monetary Affairs of the European Parliament
2011-05-15 : Contribution to Bild am Sonntag
2009-11-25 : Interview with Het Financieele Dagblad