Olwoch, Jane Mukarugwiza; Van Jaarsveld, A.S.; Scholtz, Clarke H.; Horak, Ivan Gerard(Agricultural Research Council, ARC-OVI and the University of Pretoria, 2007-03)
Khosa, Floyd Vukosi; Mateyisi, Mohau Jacob; Van der Merwe, Martina Reynita; Feig, Gregor Timothy; Engelbrecht, Francois Alwyn; Savage, Michael John(Copernicus Publications, 2020-04)