The webapp provides for each item the link on ECB's website.
Speeches for : Mario Draghi where "strain" appeared
2014-10-15 : Towards the banking union - Opportunities and challenges for statistics2014-05-26 : Monetary policy in a prolonged period of low inflation
2013-11-21 : Keynote address at the Süddeutsche Zeitung Führungstreffen Wirtschaft 2013
2013-07-08 : Hearing at the Committee on Economic and Monetary Affairs of the European Parliament