Romero Sánchez, Alexander2023-11-162023-11-162022-12-01http://hdl.handle.net/20.500.12993/3915PDFapplication/pdfspahttps://creativecommons.org/licenses/by-nc-nd/4.0http://creativecommons.org/licenses/by-nc-nd/4.0deed.esAtribución-NoComercial-SinDerivadas 4.0 Internacionalinfo:eu-repo/semantics/openAccessTexto