Petzer, Inge-Marie; Donkin, Edward Francis; Du Preez, E.; Karzis, Joanne; Van der Schans, Theodorus J.; Watermeyer, Johanna C.; Van Reenen, R.(Agricultural Research Council, ARC-OVI and the University of Pretoria, 2008-06)
Petzer, Inge-Marie; Donkin, Edward Francis; Du Preez, E.; Karzis, Joanne; Van der Schans, Theodorus J.; Watermeyer, Johanna C.; Van Reenen, R.(Agricultural Research Council, ARC-OVI and the University of Pretoria, 2008-06)
Strydom, S.; Agenas, S.; Heath, M.F.; Phillips, C.J.C.; Rautenbach, G.H.; Thompson, P.N. (Peter N.)(Agricultural Research Council, ARC-OVI and the University of Pretoria, 2008-09)