BEKKER, S.; HOFFMAN, J.; JACOBS, S.; STREVER, A.; VAN ZYL, J. Ecophysiology, Vigour, Berry and wine Quality of Grapevines Growing on and off Heuweltjies. South African Journal of Enology and Viticulture, [S. l.], v. 37, n. 2, p. 176–192, 2016. DOI: 10.21548/37-2-690. Disponível em: https://www.journals.ac.za/sajev/article/view/690. Acesso em: 28 feb. 2026.