The webapp provides for each item the link on ECB's website.
Speeches for : Jurgen Stark where "requirements" appeared
2011-11-09 : Towards a safer financial system2011-05-18 : In the aftermath of the global economic crisis: What next?
2010-10-20 : Central bank statistics: What did the financial crisis change?
2009-09-04 : The ECB's monetary policy: preserving price stability in times of financial distress
2008-04-24 : The contribution of monetary and financial statistics to the conduct of monetary policy