The webapp provides for each item the link on ECB's website.
Speeches for : Peter Praet where "estimates" appeared
2017-01-20 : Is secular stagnation the new economic reality?2015-09-09 : The ECB's asset purchase programme: the impact so far
2015-04-16 : Price stability: a sinking will-o'-the-wisp?
2015-01-31 : Interview with Süddeutsche Zeitung