The webapp provides for each item the link on ECB's website.
Speeches for : Vitor Constancio where "forum" appeared
2017-10-13 : Growth and resilience in the euro area2017-08-23 : Investment and growth in advanced economies: selected takeaways from the ECB’s Sintra Forum
2015-02-27 : Central banks with large balance sheets (slides from the presentation)
2011-02-25 : The ECB's experience with unconventional measures - Slides from presentation at the US Monetary Policy Forum