The webapp provides for each item the link on ECB's website.
Speeches for : Mario Draghi where "called" appeared
2018-04-11 : Generation €uro Students’ Award 2018 event2016-09-30 : Interview with ARD Tagesthemen
2015-10-11 : Interview with Kathimerini
2015-09-23 : President's introductory remarks at the regular ECON hearing
2014-04-24 : Monetary policy communication in turbulent times
2012-02-24 : Interview with The Wall Street Journal