The webapp provides for each item the link on ECB's website.
Speeches for : Yves Mersch where "roll" appeared
2017-09-14 : Economic and financial priorities for relaunching the Eurozone and the EU2015-11-11 : Elemente des Entwurfs des Aktionsplans zur Schaffung einer Kapitalmarktunion
2015-07-02 : Translating a shared vision into a winning story