The webapp provides for each item the link on ECB's website.
Speeches for : Benoit Coure where "sovereigns" appeared
2017-04-03 : Bond scarcity and the ECB's asset purchase programme2016-11-03 : Sovereign debt in the euro area: too safe or too risky?
2012-12-06 : Central banking, insurance and incentives
2012-11-28 : Challenges facing financial integration and financial stability
2012-10-08 : Why the euro needs a banking union