van Rensburg, J. C. J., Lamprecht, S. C., Groenewald, J. Z., Castlebury, L. A., & Crous, P. W. (2006). Characterisation of Phomopsis spp. associated with die-back of rooibos (Aspalathus linearis) in South Africa. CBS Fungal Biodiversity Centre.

van Rensburg, Johan C. Janse, Sandra C. Lamprecht, Johannes Z. Groenewald, Lisa A. Castlebury, and Pedro W. Crous. Characterisation of Phomopsis Spp. Associated With Die-back Of Rooibos (Aspalathus Linearis) in South Africa. CBS Fungal Biodiversity Centre, 2006.

van Rensburg, Johan C. Janse, et al. Characterisation of Phomopsis Spp. Associated With Die-back Of Rooibos (Aspalathus Linearis) in South Africa. CBS Fungal Biodiversity Centre, 2006.