^Lon Rombough, The Grape Grower: A Guide to Organic Viticulture Chelsea Green Publishing, 2002, (ردمك 9781603580823), p. 175
^Andrew G Reynolds, Grapevine Breeding Programs for the Wine Industry: Traditional and Molecular Techniques Elsevier, 2015, (ردمك 9781782420804), p. 92 ff
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