The webapp provides for each item the link on ECB's website.
Speeches for : Peter Praet where "improvement" appeared
2018-04-09 : Economic developments in the euro area2017-07-06 : Europe’s economic recovery and implications for monetary policy
2017-03-27 : The economic situation in the euro area and the implications for monetary policy
2017-02-23 : The macroeconomic situation and monetary policy in the euro area
2016-11-18 : The euro area economy, monetary policy and structural reforms
2016-10-26 : The euro area economy, monetary policy and structural reforms
2016-04-07 : The ECB's monetary policy response to disinflationary pressures
2015-02-05 : Interview with Les Echos
2014-02-18 : Reforms and growth in the euro area