Antonius, Kristiina, Gun Werlemark, and Hilde Nybom. “DNA Fingerprinting Demonstrates Extremely Low Levels of Genetic Variation Among Blackberry Cultivars Grown in Finland”. Agricultural and Food Science 6, no. 3 (September 1, 1997): 241–245. Accessed May 15, 2024. https://journal.fi/afs/article/view/72787.