Botha, C.J. (Christoffel Jacobus); Lewis, Alex; Du Plessis, Elizabeth C.; Clift, Sarah Jane; Williams, Mark C.(American Association of Veterinary Laboratory Diagnosticians, 2012-09-18)
Steyl, Johan Christian Abraham; Prozesky, Leon; Stoltsz, Wilhelm Heinrich(Agricultural Research Council, ARC-OVI and the University of Pretoria, 2012-04-20)