CLINGELEFFER, P.; MAY, P. The Swing-Arm Trellis for Sultana Grapevine Management. South African Journal of Enology and Viticulture, [S. l.], v. 2, n. 2, p. 37–44, 2017. DOI: 10.21548/2-2-2394. Disponível em: https://www.journals.ac.za/sajev/article/view/2394. Acesso em: 28 feb. 2026.