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de Rigo, Daniele; Enescu, Cristian Mihai; Houston Durrant, Tracy; Tinner, Willy; Caudullo, Giovanni (2016). Juglans regia in Europe: distribution, habitat, usage and threats. In: San-Miguel-Ayanz, J.; de Rigo, D.; Caudullo, G.; Houston Durrant, T.; Mauri, A. (eds.) European Atlas of Forest Tree Species (p. 103). Luxembourg: Publication Office of the European Union
