_The webapp provides for each item the link on ECB's website.
Speeches for : Jurgen Stark where "difficult" appeared
2009-09-04 : The ECB's monetary policy: preserving price stability in times of financial distress2009-06-25 : EMU - Weathering the perfect storm
2008-11-14 : Closing address at the Fifth ECB Central Banking Conference
2008-11-12 : Growth and productivity of the financial sector: challenges for monetary policy
2008-02-13 : The adoption of the euro: principles, procedures and criteria