The webapp provides for each item the link on ECB's website.
Speeches for : Jean-Claude Trichet where "quarterly" appeared
2008-04-24 : A strategic vision on euro area statistics: the ECB's view2006-05-05 : The development of euro area statistics from an ECB perspective
2004-11-11 : The ECB's use of statistics and other information for monetary policy
2004-04-22 : Euro area statistics and their use for ECB policy-making