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501Article of journalPublished in 2004Repositorio RED: Repositorio Educativo Digital UAO
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502Article of journalPublished in 2005Repositorio RED: Repositorio Educativo Digital UAO
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503Article of journalPublished in 2004Repositorio RED: Repositorio Educativo Digital UAO
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504Article of journalPublished in 2005Repositorio RED: Repositorio Educativo Digital UAO
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505Article of journalPublished in 2004Repositorio RED: Repositorio Educativo Digital UAO
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506Article of journalPublished in 2006Repositorio RED: Repositorio Educativo Digital UAO
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507Article of journalPublished in 2004Repositorio RED: Repositorio Educativo Digital UAO
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508Article of journalPor Yépez, LiliaPublished in 2006Repositorio RED: Repositorio Educativo Digital UAO
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509Trabajo de grado de pregradoPublished in 2009Repositorio RED: Repositorio Educativo Digital UAO
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510Article of journalPor Campo, FelipePublished in 2006Repositorio RED: Repositorio Educativo Digital UAO
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511Article of journalPublished in 2006Repositorio RED: Repositorio Educativo Digital UAO
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512Article of journalPublished in 2005Repositorio RED: Repositorio Educativo Digital UAO
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513Article of journalPublished in 2007Repositorio RED: Repositorio Educativo Digital UAO
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514
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515Article of journalPublished in 2006Repositorio RED: Repositorio Educativo Digital UAO
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516Article of journalPublished in 2007Repositorio RED: Repositorio Educativo Digital UAO
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517Article of journalPublished in 2011Repositorio RED: Repositorio Educativo Digital UAO
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518Article of journalPublished in 2004Repositorio RED: Repositorio Educativo Digital UAO
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519Article of journalPor Urdinola, FreddyPublished in 2004Repositorio RED: Repositorio Educativo Digital UAO
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520