“Growth and Performance of Four Apple Cultivars on M.26 and Mark Rootstocks, With or Without Preplant Mineral Nutrients”. Journal of the American Pomological Society 49, no. 4 (October 1, 1995): 198–204. Accessed February 15, 2026. https://journal.americanpomological.org/index.php/jofaps/article/view/2146.