The webapp provides for each item the link on ECB's website.
Speeches for : Jurgen Stark where "surveillance" appeared
2011-10-17 : Hearing at the Committee on Economic and Monetary Affairs of the European Parliament2011-05-18 : In the aftermath of the global economic crisis: What next?
2011-04-12 : The global financial crisis and the role of central banking
2010-10-20 : Central bank statistics: What did the financial crisis change?