The webapp provides for each item the link on ECB's website.
Speeches for : Peter Praet where "omts" appeared
2017-05-11 : The role of the ECB: prudence and responsibility in times of crisis2017-03-29 : Have unconventional policies overstretched central bank independence? Challenges for accountability and transparency in the wake of the crisis
2013-07-18 : Interview with Handelsblatt
2012-11-26 : Deleveraging and monetary policy