The webapp provides for each item the link on ECB's website.
Speeches for : Vitor Constancio where "targeting" appeared
2018-05-16 : Interview with the Financial Times2018-05-04 : Past and future of the ECB monetary policy
2017-05-25 : The future of monetary policy frameworks
2016-11-04 : Challenges for future monetary policy frameworks: A European perspective
2015-01-31 : Monetary policy challenges in the euro area