The webapp provides for each item the link on ECB's website.
Speeches for : Yves Mersch where "options" appeared
2020-05-11 : An ECB digital currency – a flight of fancy?2017-04-28 : Why Europe Still Needs Cash
2017-01-16 : Digital Base Money: an assessment from the ECB's perspective
2016-06-29 : Opening remarks at the Academy of European Law
2015-11-15 : Interview with Les Echos
2013-12-09 : Euro area monetary policy: where we stand
2013-10-24 : Interview with Het Financieele Dagblad