The webapp provides for each item the link on ECB's website.
Speeches for : Lorenzo Bini Smaghi where "burden" appeared
2011-10-17 : The European debt crisis2011-02-22 : Eurozone, European crisis & policy responses
2010-06-18 : The financial and fiscal crisis: a euro area perspective
2006-09-28 : Democratic Representation and Economic Policy Rules in an Ageing Society