The webapp provides for each item the link on ECB's website.
Speeches for : Jean-Claude Trichet where "otc" appeared
2011-10-19 : Remarks at the farewell event2011-05-18 : Interview with L’Agefi Hebdo
2011-05-13 : Financial reform: what has been achieved and what remains to be done
2006-04-04 : Issues related to central counterparty clearing