The webapp provides for each item the link on ECB's website.
Speeches for : Mario Draghi where "owed" appeared
2018-12-15 : Europe and the euro 20 years on2016-03-11 : Interview with The Guardian
2015-03-18 : Speech at the inauguration of the New ECB Premises
2014-02-27 : The path to recovery and the ECB's role