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Bibliographic Details
Main Author: Jorge Julián Restrepo A.
Format: Article
Language:English
Published: Universidad Nacional de Colombia 2007-01-01
Series:Dyna
Online Access:http://www.redalyc.org/articulo.oa?id=49615227

Internet

http://www.redalyc.org/articulo.oa?id=49615227

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