The webapp provides for each item the link on ECB's website.
Speeches for : Peter Praet where "equilibrium" appeared
2018-10-17 : Economic policymaking under uncertainty2018-06-06 : Monetary policy in a low interest rate environment
2017-04-06 : Calibrating unconventional monetary policy
2017-01-20 : Is secular stagnation the new economic reality?
2016-04-04 : The ECB's fight against low inflation: reasons and consequences
2015-04-23 : Lifting potential growth in the euro area
2015-04-16 : Price stability: a sinking will-o'-the-wisp?