EI Christian
Richard G. Taylor
Karen Brooks
John Colvin, Mutizwa Mukute
John Kirton, Andrew F. Cooper, Franklyn Lisk
Todd A. Surovell, Nicole M. Waguespack, P. Jeffrey Brantingham et al.
Samir Al-Gamal, Abdelkader Dodo, Sahel Observatory
Hussen Seid Endris, Chris Lennard, Bruce Hewitson
Robert Katikiro, Kathleen Schwerdtner Máñez, Michael Flitner et al.
Michela Biasutti, Alessandra Giannini
Christopher M. Taylor, Danijel Belušić, Françoise Guichard et al.
G.J. van den Born, Rik Leemans, Michiel Schaeffer
