The webapp provides for each item the link on ECB's website.
Speeches for : Jorg Asmussen where "credibility" appeared
2013-09-10 : The global monetary policy stance: what are the risks?2013-06-26 : Intervention in a panel on “The Future of Europe”
2013-02-22 : The future of global economic governance
2012-04-20 : Key issues about the crisis and the European response