The webapp provides for each item the link on ECB's website.
Speeches for : Jurgen Stark where "unemployment" appeared
2008-06-11 : Lessons for central bankers from the history of the Phillips Curve2008-03-17 : Bullet Points for intervention delivered at the OECD-IMF Conference on structural reforms
2007-01-25 : Applause for 2006 should not abate policy efforts for 2007