The webapp provides for each item the link on ECB's website.
Speeches for : Peter Praet where "externalities" appeared
2018-08-28 : Monetary and Macroprudential Policy Interactions2016-08-31 : Financial cycles and monetary policy
2014-11-17 : Repairing the bank lending channel: the next steps
2013-04-17 : The crisis response in the euro area