Moeketsi, D M, Combrinck, W L, McKinnell, Lee-Anne, Fedrizz, M. Mapping GPS-derived ionospheric Total Electron Content over Southern Africa during different epochs of solar cycle 23. 2007.

Moeketsi, D M, McKinnell, Lee-Anne, Combrinck, W L. Validation of University of New Brunswick Ionospheric Modeling Technique with ionosonde TEC estimation over South Africa. 2009.