\documentclass[a4paper]{article}
\usepackage[a4paper, total={20cm, 27cm}]{geometry}

\pagestyle{empty}

\usepackage[utf8]{inputenc}
\usepackage{hyperref}

\usepackage[
%backend=biber,
backend=bibtex,
%style=ieee,
style=reading,
sorting=ydnt,
defernumbers=true
]{biblatex}

\addbibresource{../../../golem}

\title{The GOLEM tokamak bibliography}
\author{The tokamak GOLEM team}
\date{SGS 2022 relevant}

\begin{document}

\maketitle


\nocite{*}

%\bibliographystyle{abstract}
%\bibliographystyle{unsrt}
%\bibliographystyle{apalike}
%\bibliography{/GW/root/bibtex/golem,/GW/root/bibtex/others}

\defbibcheck{late}{
  \iffieldint{year}
  {\ifnumless{\thefield{year}}{2022}
    {\skipentry}
    {}}
  {\skipentry}
}

\printbibliography[check=late,type=article,keyword=in,title={Official GOLEM Articles}]
\printbibliography[check=late,type=inproceedings,title={Conference proceedings}]
\printbibliography[check=late,keyword=mathesis,title={Master thesis}]
\printbibliography[check=late,keyword=bachproj,title={Bachelor projects}]
\printbibliography[check=late,keyword=soc,title={High School Students` Professional Activities}]


\end{document}