Upadhyay, S.K., et al. “Effect of Pruning Intensities on Growth, Nut Quality, Yield and Leaf Nutrient Status of Pecan”. Indian Journal of Horticulture, vol. 68, no. 02, June 2011, pp. 184-8, https://journal.iahs.org.in/index.php/ijh/article/view/1879.