Authors: Francois Kiemde, Halidou Tinto, Jane Carter, Toussaint Rouamba, Daniel Valia, Lesong Conteh, Elisa Sicuri, Bryony Simmons, Bakri Nour, Davis Mumbengegwi,
Asrat Hailu, Stephen Munene, Albadawi Talha, Mulugeta Aemero, Paul Meakin,
Rene´ Paulussen, Scott Page, Norbert van Dijk, Petra Mens,
Henk Schallig