Session 26 (Geneva, 21 May 2019)	26	2019-05-21
Session 27 (Bern, 23-27 September 2019)	27	2019-09-23
Session 28 (Web conference, 7 November 2019)	28	2019-11-07
Session 29 (Web conference, 26 November 2019)	29	2019-11-26
Session 30 (Web Conference, 11 December 2019)	30	2019-12-11