Frenken, K., Van Oort, F., & Verburg, T. (2007). Related variety, unre- lated variety and regional economic growth. Regional Studies, 41(5), 685-697. https://doi.org/10.1080/00343400601120296
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Frenken, K., Oort, F., Verburg, T. (2007). Related variety, unre- lated variety and regional economic growth. Regional Studies, 41(5), pp. 685-697.
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