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561Article of journalPublished in 2007Repositorio Universidad Nacional de Colombia
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562Doctoral thesisPublished in 2009Repositorio Universidad Nacional de Colombia
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563Article of journalPublished in 2017Repositorio Universidad Nacional de Colombia
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564Published in 2010Repositorio Universidad Nacional de Colombia
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565
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566Article of journalPublished in 2018Repositorio Universidad Nacional de Colombia
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567
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569Article of journalPublished in 2013Repositorio Universidad Nacional de Colombia
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570Article of journalPublished in 2001Repositorio Universidad Nacional de Colombia
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571Article of journalPublished in 2008Repositorio Universidad Nacional de Colombia
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572Work documentPublished in 2018Repositorio Universidad Nacional de Colombia
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573Published in 2014Repositorio Universidad Nacional de Colombia
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574
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576
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577
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578articlePublished in 2015Repositorio Repositorio Universidad Javeriana“... with their investments, often without external support. This phenomenon has been called Self-supply. Self-supply ranges...”
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579Article of journalPublished in 2015Repositorio Repositorio Digital Universidad de los LLanos
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580Published in 2019Repositorio Repositorio EAFIT
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