The webapp provides for each item the link on ECB's website.
Speeches for : Mario Draghi where "undertake" appeared
2016-07-21 : Introductory statement to the press conference (with Q&A)2013-12-15 : Interview with Le Journal du Dimanche
2013-10-11 : Euro area economic outlook, the ECB's monetary policy and current policy challenges
2012-08-02 : Introductory statement to the press conference (with Q&A)
2011-12-19 : Interview with the Financial Times