The webapp provides for each item the link on ECB's website.
Speeches for : Willem F. Duisenberg where "concept" appeared
2003-10-22 : Maastricht and the future of Europe2003-05-08 : Press seminar on the evaluation of the ECB's monetary policy strategy
2002-05-08 : What are the political consequences of the euro?
2001-12-13 : ECB press conference on the occasion of the Signing of the Agreement between the European Central Bank and Europol
2001-06-20 : Euro 2002 Information Campaign
2000-11-02 : First ECB Central Banking Conference, 2-3 November 2000, Frankfurt am Main