Analysis of information sources in references of the Wikipedia article "Natural rubber" in English language version.
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: CS1 maint: multiple names: authors list (link)The importance of developing alternative sources of natural rubber becomes clear when considering that there has been a shortage in the supply of this critical resource every year since 2004. By 2020, the global shortfall of natural rubber is projected to be more than the entire amount (1.2 million metric tonnes) the U.S. imports every year.
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