The webapp provides for each item the link on ECB's website.
Speeches for : Gertrude Tumpel-Gugerell where "adopting" appeared
2009-11-16 : A case for rapid euro adoption?2007-11-26 : The euro - benefits and challenges
2003-11-14 : ECB's monetary policy issues in the run-up to enlargement
2003-10-27 : The euro in central and eastern Europe