Walton, Roberto2016-08-01http://revistas.pucp.edu.pe/index.php/arete/article/view/15066/15575No presenta resumenapplication/pdfspainfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/articlehttps://purl.org/pe-repo/ocde/ford#6.03.01https://doi.org/10.18800/arete.201601.007