http://www.saber.ula.ve/handle/123456789/3448 1967 Sat, 16 May 2026 02:06:58 GMT 2026-05-16T02:06:58Z http://www.saber.ula.ve/handle/123456789/15597 Triandáfila Briceño Guerrero, José Manuel Thu, 13 Jul 2006 09:00:00 GMT http://www.saber.ula.ve/handle/123456789/15597 2006-07-13T09:00:00Z