Die benutze ich natürlich leider nicht, sodass das Beispiel nicht funktioniert.
documentclass[listof=totoc, 11pt, a4paper, titlepage, abstracton]{scrreprt}
\usepackage[citestyle=numeric,
minbibnames=3,
maxbibnames=3,
block=space, %Raum zwischen den verschiedenen Literaturverzeichniseinträgen
abbreviate=true,
sorting=nty,
backend=biber]{biblatex}
\bibliography{Literatur.bib}
\begin{document}
\cite{PAN}
\printbibliography[heading=bibintoc, title={Literaturverzeichnis}]
\end{document}
Im Folgenden der Beispieleintrag:
@Article{PAN,
author = {Hongjie Pan and Joseph Califano and Jose F Ponte and Andrea L Russo and Kuang-hung Cheng and Arunthathi Thiagalingam},
journal = {Cancer Res},
title = {Loss of Heterozygosity Patterns Provide Fingerprints for Genetic Heterogeneity in Multistep Cancer Progression of Tobacco Smoke--Induced Non-- Small Cell Lung Cancer},
year = {2005},
month = mar,
number = {5},
pages = {1664-1669},
volume = {65},
bdsk-file-1 = {YnBsaXN0MDDSAQIDBFxyZWxhdGl2ZVBhdGhZYWxpYXNEYXRhXxA8Li4vLi4vTGl0ZXJhdHVyL0FydGlrZWwvUGF0aG9nZW5lc2UvU21va2UgYW4gTHVuZyBDYW5jZXIucGRmTxEB0AAAAAAB0AACAAAMTWFjaW50b3NoIEhEAAAAAAAAAAAAAAAAAAAAAAAAAEJEAAH/////GFNtb2tlIGFuIEx1bmcgQ2FuY2VyLnBkZgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAP////8AAAAAAAAAAAAAAAAAAgAEAAAKIGN1AAAAAAAAAAAAAAAAAAtQYXRob2dlbmVzZQAAAgBgLzpVc2VyczpXaWVsZW5iZXJnOkRvY3VtZW50czpEb2t0b3JhcmJlaXQ6TGl0ZXJhdHVyOkFydGlrZWw6UGF0aG9nZW5lc2U6U21va2UgYW4gTHVuZyBDYW5jZXIucGRmAA4AMgAYAFMAbQBvAGsAZQAgAGEAbgAgAEwAdQBuAGcAIABDAGEAbgBjAGUAcgAuAHAAZABmAA8AGgAMAE0AYQBjAGkAbgB0AG8AcwBoACAASABEABIAXlVzZXJzL1dpZWxlbmJlcmcvRG9jdW1lbnRzL0Rva3RvcmFyYmVpdC9MaXRlcmF0dXIvQXJ0aWtlbC9QYXRob2dlbmVzZS9TbW9rZSBhbiBMdW5nIENhbmNlci5wZGYAEwABLwAAFQACABH//wAAAAgADQAaACQAYwAAAAAAAAIBAAAAAAAAAAUAAAAAAAAAAAAAAAAAAAI3},
date-added = {2017-11-06 11:08:23 +0000},
date-modified = {2017-11-09 10:04:25 +0000},
}