Analysis of information sources in references of the Wikipedia article "Wind turbine design" in English language version.
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: CS1 maint: archived copy as title (link)it is estimated that nearly 30% of all wind turbines globally are installed with ultra-capacitor systems
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: CS1 maint: multiple names: authors list (link)it is estimated that nearly 30% of all wind turbines globally are installed with ultra-capacitor systems
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: CS1 maint: archived copy as title (link)