The webapp provides for each item the link on ECB's website.
Speeches for : Vitor Constancio where "american" appeared
2018-05-04 : Past and future of the ECB monetary policy2016-12-16 : Stijn van Nieuwerburgh's contribution to macroeconomics and finance
2016-06-06 : Margins and haircuts as a macroprudential tool
2016-04-13 : International headwinds and the effectiveness of Monetary Policy
2014-11-03 : Thomas Philippon's contribution to macro-finance
2013-07-12 : The role of Europe in global rebalancing