The webapp provides for each item the link on ECB's website.
Speeches for : Yves Mersch where "backstop" appeared
2020-06-25 : The World Economy Transformed2016-10-12 : The ECB and the Federal Reserve - an ocean apart?
2013-10-24 : Interview with Het Financieele Dagblad
2013-10-14 : Interview with Frankfurter Allgemeine Zeitung
2013-08-29 : The single market and banking union