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· Schilperoord, Peer und Heistinger, Andrea 2011. Literaturstudie alpine Kulturpflanzen Vs. 5.1.
· Zohary, Daniel; Hopf, Maria; Weiss, Ehud (2012): Domestication of plants in the Old World. The origin and spread of domesticated plants in Southwest Asia, Europe, and the Mediterranean Basin. 4. Aufl. Oxford: Oxford University Press. ISBN: 978-0199549061