The webapp provides for each item the link on ECB's website.
Speeches for : Jean-Claude Trichet where "owl" appeared
2011-06-01 : Making decisions in an uncertain world2010-09-27 : Macro-prudential Regulation as an Approach to Contain Systemic Risk: Economic Foundations, Diagnostic Tools and Policy Instruments
2010-01-23 : Interview with FOCUS
2005-11-10 : Growth potential, labour productivity and structural reforms in Europe
2004-12-15 : Press briefing on the “ECB Financial Stability Review“