http://repositoriodigital.ipn.mx/handle/123456789/2846 Sat, 18 Apr 2026 14:58:30 GMT 2026-04-18T14:58:30Z http://repositoriodigital.ipn.mx/handle/123456789/9114 Title: Constancia Authors: Lopez Gayou, Valentin Description: Comisión de asignatura Mon, 17 Dec 2012 00:00:00 GMT http://repositoriodigital.ipn.mx/handle/123456789/9114 2012-12-17T00:00:00Z http://repositoriodigital.ipn.mx/handle/123456789/9113 Title: Constancia Authors: Lopez Gayou, Valentin Description: Comisión de Asignatura Mon, 17 Dec 2012 00:00:00 GMT http://repositoriodigital.ipn.mx/handle/123456789/9113 2012-12-17T00:00:00Z http://repositoriodigital.ipn.mx/handle/123456789/9112 Title: Constancia Authors: Lopez Gayou, Valentin Description: Comisión de Admisión Mon, 17 Dec 2012 00:00:00 GMT http://repositoriodigital.ipn.mx/handle/123456789/9112 2012-12-17T00:00:00Z http://repositoriodigital.ipn.mx/handle/123456789/9111 Title: Constancia Authors: Lopez Gayou, Valentin Description: Comisión de Admisión Mon, 17 Dec 2012 00:00:00 GMT http://repositoriodigital.ipn.mx/handle/123456789/9111 2012-12-17T00:00:00Z