Astrid R.N. Haas 2 Apr 2020
George Ogola 26 Mar 2020
Thomas Daum 23 Apr 2019
Channing Arndt and Claudia Ringler 5 Apr 2019
Frank M. Mitloehner 26 Oct 2018
Calestous Juma 7 Dec 2017
Sheryl L Hendriks, Katrin Glatzel, Ousmane Badiane 27 Oct 2017
Bev Postma 12 Sep 2017
Esther Ndumi Ngumbi 27 Jun 2017
Frans Swanepoel 19 Jun 2017
Hakim Abdi 14 Jun 2017
Stephen Devereux 3 Apr 2017
Busani Bafana 5 Sep 2016
Jane Battersby 3 Mar 2016