On Universality in Human Correspondence Activity
Malmgren, R. Dean ; Stouffer, Daniel B ; Campanharo, Andriana S.L.O ; Amaral, Luís A. Nunes
Science (American Association for the Advancement of Science), 2009-09, Vol.325 (5948), p.1696-1700 [Periódico revisado por pares]Washington, DC: American Association for the Advancement of Science
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