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Multinetwork of international trade: a commodity-specific analysis.
Barigozzi M, Fagiolo G, Garlaschelli D. Barigozzi M, et al. Phys Rev E Stat Nonlin Soft Matter Phys. 2010 Apr;81(4 Pt 2):046104. doi: 10.1103/PhysRevE.81.046104. Epub 2010 Apr 9. Phys Rev E Stat Nonlin Soft Matter Phys. 2010. PMID: 20481783 Free article.