<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">\documentclass{book}

\usepackage{showkeys}
\usepackage[
  backend=biber, 
  natbib=true,
  style=numeric,
  sorting=none
  ]{biblatex}

\bibliography{rfcs}

\begin{document}
\nocite{*}
\printbibliography
\end{document}
</pre></body></html>