The webapp provides for each item the link on ECB's website.
Speeches for : Willem F. Duisenberg where "practices" appeared
2003-10-13 : Introductory statement with Q&A2002-04-24 : The role of the Eurosystem in prudential supervision
2001-12-17 : The ECB's monetary policy strategy and the quantitative definition of price stability
2001-05-18 : The European Central Bank, the Eurosystem and the European System of Central Banks
1998-09-23 : Close of the morning session of a Conference on Monnaie unique et fiscalité de l'épargne: quelle Europe financière? organised by the European Parliament