The webapp provides for each item the link on ECB's website.
Speeches for : Jean-Claude Trichet where "constantly" appeared
2011-07-27 : Interview with Le Point2008-02-25 : The growing importance of the Asia-Pacific region
2007-08-11 : Interview with Ouest France
2005-04-09 : The challenges of economic and financial integration in the enlarged Europe
2004-11-11 : The ECB's use of statistics and other information for monetary policy