The webapp provides for each item the link on ECB's website.
Speeches for : Vitor Constancio where "sie" appeared
2015-05-04 : Interview with Het Financieele Dagblad2014-09-08 : Understanding the yield curve
Speeches for : Vitor Constancio where "sie" appeared
2015-05-04 : Interview with Het Financieele Dagblad