The webapp provides for each item the link on ECB's website.
Speeches for : Jean-Claude Trichet where "proven" appeared
2010-09-05 : Celebration of the 130th anniversary of Banca Naţională a României2009-12-27 : Guest commentary on BILD AM SONNTAG
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