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3Digital revistaSCIELO
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5Digital revistaSCIELO
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7by Herrera, Cristina, García Barrantes, Pedro M., Binns, Franklin, Vargas, Marianela, Poveda, Luis Jorge, Badilla, Sandra
Published 2011http://purl.org/coar/resource_type/c_6501 bibliotecaUNA CR