Session 1 (Paris, 19-20 November 2013)	1	2013-11-19
Session 2 (Paris, 23-24 October 2014)	2	2014-10-23
Session 3 (Brussels, 16-17 December 2014)	3	2014-12-16
Session 4 (Tokyo, 15-17 June 2015)	4	2015-06-15