Session 12 (Geneva, 15 January 2013)	12	2013-01-15
Session 13 (Borlänge, 21-22 March 2013)	13	2013-03-21
Session 14 (Geneva, 4 June 2013)	14	2013-06-04
Session 15 (San Francisco, 23-25 October 2013)	15	2013-10-23