https://texwelt.de/fragen/26521/

mwe.tex

\documentclass[ngerman]{article}
\usepackage[T1]{fontenc}
\usepackage{babel}
\usepackage{csquotes}

\usepackage[style=authoryear, backend=biber]{biblatex}


\addbibresource{biblatex-examples.bib}


\begin{document}
Lorem \autocite{sigfridsson}

\printbibliography
\end{document}