The webapp provides for each item the link on ECB's website.
Speeches for : Jose Manuel Gonzalez-Paramo where "intervention" appeared
2011-09-19 : Monetary and fiscal policies in times of crisis2008-11-21 : The financial market crisis, uncertainty and policy responses
2008-10-16 : Liquidity, financial markets and the economy: The role of central banks
2007-12-03 : The role of information and communication in central bank policy: The experience of the recent financial turmoil