| Author | Garcia M., Gallego P., Daverède and Ibrahim H. |
| Article | Effect of three rootstocks on grapevine (Vitis vinifera L.) cv. Négrette, grown hydroponically. I. Potassium, calcium and magnesium nutrition. |
| Year | 2001 |
| Edition | 22 (2) |
| Page No. | 101-103 |
| Source | South African Journal of Enology and Viticulture. |