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Trotter RT 3rd, Cobb NS, Whitham TG.Trotter RT 3rd, et al. Among authors: cobb ns.Proc Natl Acad Sci U S A. 2002 Jul 23;99(15):10197-202. doi: 10.1073/pnas.152030399. Epub 2002 Jul 10.Proc Natl Acad Sci U S A. 2002.PMID: 12110729Free PMC article.
Woods JO, Carr TG, Price PW, Stevens LE, Cobb NS.Woods JO, et al. Among authors: cobb ns.Oecologia. 1996 Dec;108(4):714-722. doi: 10.1007/BF00329047.Oecologia. 1996.PMID: 28307806