“Performance of Plum Rootstocks With ‘Stanley’, ‘Valor’, ‘Veeblue’ and ‘Santa Rosa’ As the Scions in the 1991 NC-140 Multi-State Plum Trial”. 2010. Journal of the American Pomological Society 64 (3): 173-82. https://doi.org/10.71318/apom.2010.64.3.173.