Add article.

article/manifest.scm

+(specifications->manifest
+ (list
+  "rubber"
+
+  "texlive-base"
+  "texlive-latex-blindtext"
+  ))

article/the-article.tex

+\documentclass{article}
+\usepackage[english]{babel}
+\usepackage{blindtext}
+\usepackage{graphicx}
+\usepackage{hyperref}
+
+\title{The paper you want to reproduce\\
+most paper looks like that}
+\author{J. Random Hacker}
+\date{December 14, 2022}
+
+\begin{document}
+\maketitle
+
+\begin{abstract}
+  \blindtext
+\end{abstract}
+
+\blindtext
+\section*{Introduction}
+\blindtext
+\Blindlist{itemize}[2]
+\blindtext
+\section*{Methods}
+\blindmathpaper
+
+\section*{Results}
+\blindtext
+\subsection*{The figure you want to reproduce}
+\begin{figure}[!h]
+  \centering
+  \includegraphics[width=0.9\textwidth]{the-figure}
+  \caption{how to verify and/or validate this figure?}
+\end{figure}
+
+\subsection*{The result you want to verify}
+
+From our model, the CO2 concentration will be because 800--which is
+detrimental for human brain--in 2122.  The model is in the script
+\texttt{python/co2-bis.py}.  we used Guix with the specification in the
+\texttt{python/channels.scm}.  Especially, we used the Python package named
+\texttt{dual} (see \href{https://gitlab.com/zimoun/dual/}%
+{https://gitlab.com/zimoun/dual/}).
+
+\section*{Discussion}
+\blindtext
+
+\blindtext
+
+\begin{thebibliography}{9}
+
+\bibitem{data1}
+  Keeling, C.D.,
+  \emph{The Concentration and Isotopic Abundances of Atmospheric Carbon
+    Dioxide in Rural Areas},
+  in Geochimica Et Cosmochimica Acta,
+  vol. 13,
+  pp. 322--334,
+  1958.
+
+\bibitem{data}
+  Carbon Dioxide Measurements,
+  \href{https://scrippsco2.ucsd.edu}{https://scrippsco2.ucsd.edu}
+
+\bibitem{lesk:1977}
+  Michael Lesk and Brian Kernighan,
+  \emph{Computer Typesetting of Technical Journals on {UNIX}},
+  in {Proceedings of American Federation of
+    Information Processing Societies: 1977
+    National Computer Conference},
+  pp. {879--888},
+  1977.
+
+\bibitem{knuth:1984}
+  {Donald E. Knuth},
+  \emph{Literate Programming},
+  in {The Computer Journal},
+  vol. {27},
+  n. {2},
+  pp. {97--111},
+  {Oxford University Press}
+  {1984}.
+
+\bibitem{texbook}
+  Donald E. Knuth,
+  \emph{The \TeX{} Book},
+  Addison-Wesley Professional,
+  1986.
+
+\bibitem{lamport94}
+  Leslie Lamport,
+  \emph{\LaTeX: a document preparation system},
+  Addison Wesley, Massachusetts,
+  2nd edition,
+  1994.
+\end{thebibliography}
+\end{document}