Sommer, K. ., Hancock, F. and Downey, M. (2016) “Resilience of Sultana (Vitis Vinifera) to Drought and Subsequent Recovery: Field Evaluation of Nine Rootstock Scion Combinations”, South African Journal of Enology and Viticulture, 31(2), pp. 181–185. doi: 10.21548/31-2-1416.