| Author | Wooldridge J. and Olivier M.P. |
| Article | Effects of weathered soil parent materials on Merlot grapevines grafted onto 110 Richter and 101-14Mgt rootstocks. |
| Year | 2014 |
| Edition | 35 (1) |
| Page No. | 59-67 |
| Source | South African Journal for Enology and Viticulture. |