“The Effect of Soluble Sugars, Total Flavan and Juglone Concentrations in Walnut Scions on Graft Survival”. Journal of the American Pomological Society 57, no. 4 (October 1, 2003): 173–176. Accessed April 27, 2026. https://journal.americanpomological.org/index.php/jofaps/article/view/2519.