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 \documentclass[a4paper,12pt]{article}
 
 \usepackage[mincrossrefs=5,bibtex8]{biblatex}
 \usepackage[utf8]{inputenc}
 \usepackage[T1]{fontenc}
 % \usepackage{csquotes}
 \usepackage[ngerman]{babel}
  
 \bibliography{biblatexreqlines}
 \begin{document}
 
 \section{First}
 
 \begin{refsection}
 Test \cite{Scherzer1936}
 \end{refsection}
 
 
 \section{Second}
 
 \begin{refsection}
 Test \cite{Scherzer1936}
 \end{refsection}
 
 \printbibliography[section=1]
 \printbibliography[section=2]
 \end{document}