The webapp provides for each item the link on ECB's website.
Speeches for : Mario Draghi where "collection" appeared
2016-07-06 : Eighth ECB Statistics Conference2015-10-06 : Welcome address at the art inauguration at the ECB
2012-04-17 : Statistics to deliver price stability and mitigate systemic risk
2012-03-23 : Interview with Bild Zeitung