diff --git a/TFG_Sixto_José_Martínez_Gan.pdf b/TFG_Sixto_José_Martínez_Gan.pdf
index 5f08e07..d7e40d4 100644
Binary files a/TFG_Sixto_José_Martínez_Gan.pdf and b/TFG_Sixto_José_Martínez_Gan.pdf differ
diff --git a/TFG_Sixto_José_Martínez_Gan.tex b/TFG_Sixto_José_Martínez_Gan.tex
index a4217c6..3946869 100644
--- a/TFG_Sixto_José_Martínez_Gan.tex
+++ b/TFG_Sixto_José_Martínez_Gan.tex
@@ -50,13 +50,14 @@
 \usepackage{enumitem}
 
 % Bibliografía.
-%\newif\ifbibtex
-%\bibtextrue
-%\ifbibtex
-%\else
+\newif\ifbibtex
+\bibtextrue
+%\bibtexfalse
+\ifbibtex
+\else
 \usepackage[backend=biber]{biblatex}
 \addbibresource{bibliografia.bib}
-%\fi
+\fi
 
 \usepackage{algpseudocodex}
 \algrenewcommand\algorithmicwhile{\textbf{mientras}}
@@ -1597,11 +1598,11 @@ x2z+y3,3z,-3y2,-2z,0,
 		a = h + \sum
 	\end{equation*}
 	\todo{Completar la demostración.}
-%\ifbibtex
-%	\bibliography{bibliografia}
-%	\bibliographystyle{plain}
-%\else
+\ifbibtex
+	\bibliography{bibliografia}
+	\bibliographystyle{plain}
+\else
 	\nocite{*}
 	\printbibliography
-%\fi
+\fi
 \end{document}