The webapp provides for each item the link on ECB's website.
Speeches for : Peter Praet where "troika" appeared
2015-06-13 : Interview with der Standard2015-02-16 : Interview with Jornal de Negócios
2014-12-31 : Interview with Börsen-Zeitung
Speeches for : Peter Praet where "troika" appeared
2015-06-13 : Interview with der Standard