“Performance of ‘Starkspur Supreme Delicious’ Apple Over 10 Years at Three Axillary NC-140 Planting Sites”. Journal of the American Pomological Society 50, no. 1 (January 1, 1996): 41–44. Accessed December 11, 2025. https://journal.americanpomological.org/index.php/jofaps/article/view/2205.