Ghirardi, Olsen A.2018-04-122018-04-121997http://revistas.pucp.edu.pe/index.php/iusetveritas/article/view/15722/16158application/pdfspainfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/articlehttps://purl.org/pe-repo/ocde/ford#5.05.00