Items where Author is "Opperman, B."

Thomson, A.W.P. and Gaunt, C.T. and Cilliers, P. and Wild, J.A. and Opperman, B. and McKinnell, L.A. and Kotze, P. and Ngwire, C.M. and Lotz, S.I. (2010) Present day challenges in understanding the geomagnetic hazard to national power grids. Advances in Space Research, 45 (9). pp. 1182-1190. ISSN 0273-1177