The webapp provides for each item the link on ECB's website.
Speeches for : Benoit Coure where "banknote" appeared
2018-05-14 : The future of central bank money2018-03-13 : Bitcoin not the answer to a cashless society
2016-02-13 : Interview with Rheinische Post
2016-02-11 : Interview with Le Parisien
2013-04-22 : Euro banknotes: a secure means of payment and a symbol of Europe
2012-02-19 : Central banks and the challenges of the zero lower bound