A. M. Swemmer, W. J. Bond, J. Donaldson, G. P. Hempson, J. Malherbe, and I. P. Smit, “The ecology of drought – a workshop report”, S. Afr. J. Sci., vol. 114, no. 9/10, Sep. 2018, doi: 10.17159/sajs.2018/5098.