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A future with less of a gap between rich and poor |
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| Authors: | de M Guimarães L B Soares M M |
| Affiliation: | Federal University of Rio Grande do Sul, Post-graduate Program in Production Engineering Programa de Pos Gradua??o em Engenharia de Produ??o, Porto Alegre, RS, Brazil. lia@producao.ufrgs.br |
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| 本文献已被 PubMed 等数据库收录！ | |
