Boeira, Rita Carla, et al. “Planting Density and Training System in Young Orchads of ’Cerrito’ Peach”. Pesquisa Agropecuaria Brasileira, vol. 23, no. 5, Apr. 2014, pp. 511-8, doi:10.1590/S1678-3921.pab1988.v23.13912.