Roberto, Sérgio Ruffo, et al. “Evaluation of Shoot Growth and Fruitful Buds of ’niagara rosada’ Grape Submitted to Different Units of Pruning”. Semina: Ciências Agrárias, vol. 23, no. 2, Apr. 2009, pp. 185-90, doi:10.5433/1679-0359.2002v23n2p185.