Bogalecki, Alfons Willi; Du Plessis, Monuko; Venter, Petrus Johannes; Janse van Rensburg, Christo(South African Institute of Electrical Engineers, 2012-03)
Kleynhans, Waldo; Salmon, Brian Paxton; Olivier, Jan Corne; Van den Bergh, Frans; Wessels, K.J. (Konrad); Grobler, Trienko Lups; Steenkamp, Karen C.(Institute of Electrical and Electronics Engineers, 2012)