Session 23 (Milan, 10 February 2011)	23	2011-02-10
Session 24 (Brussels, 17 March 2011)	24	2011-03-17
Session 25 (Paris, 20 April 2011)	25	2011-04-20
Session 26 (Bonn, 5 July 2011)	26	2011-07-05
Session 27 (Paris, 8 September 2011)	27	2011-09-08
Session 28 (Brussels, 27-28 September 2011)	28	2011-09-27
Session 29 (Geneva, 5-6 December 2011)	29	2011-12-05