P. Moyo, S. du Raan, and P. H. Fourie, “Models for predicting pseudothecium maturity and ascospore release of Phyllosticta spp. in South African citrus orchards”, S. Afr. J. Sci., vol. 116, no. 11/12, Nov. 2020, doi: 10.17159/sajs.2020/7955.