Page break in the middle of Biblatex source item

Question

I have the problem that Biblatex puts a page break in the middle of a reference of the bibliography.

I have already searched and all offered solutions like setting the interlinepenalty to the maximum value of 10,000 had no effect.

I am really at a loss. Attached you can see the style structure of the bibliography:

\ProvidesFile{style.bbx}
\RequireBiber[2]
\RequireBibliographyStyle{authortitle}
\setcounter{biburlnumpenalty}{100}  % allow breaks after numbers
\setcounter{biburlucpenalty}{100}   % allow breaks after uppercase letters
\setcounter{biburllcpenalty}{100}   % allow breaks after lowercase letters
\renewcommand*{\bibsetup}{\RaggedRight}
\InitializeBibliographyStyle
{%
    \setlength\bibitemsep{6pt}%
    \setlength\bibhang{0.75cm}
    \UniCn
    \fontsize{10pt}{12pt}
}
\defbibenvironment{bibliography}
{\list
    {\fontsize{10pt}{12pt}\UniCn[\printfield[labelnumberwidth]{labelnumber}]}
    {%
        \setlength{\labelwidth}{\labelnumberwidth}%
        \setlength{\leftmargin}{\bibhang}%
        \setlength{\itemindent}{-\leftmargin}%
        \setlength{\itemsep}{\bibitemsep}%
        \setlength{\parsep}{\bibparsep}%
    }%
}
{\endlist}
{\item}
%\item\begin{minipage}[t]{\textwidth}\end{minipage}
\NewBibliographyString{abgerufen am}
\DefineBibliographyStrings{ngerman}{%
    abgerufen am = {abgerufen am},
}
\NewBibliographyString{URL}
\DefineBibliographyStrings{ngerman}{%
    URL = {URL},
}
\newbibmacro{name:newformat}{%
    {\namepartfamily}  % #1->\namepartfamily, #2->\namepartfamilyi
        {\namepartgiven}   % #3->\namepartgiven,  #4->\namepartgiveni
        [prefix: \namepartprefix] % #5->\namepartprefix, #6->\namepartprefixi
        [suffix: \namepartsuffix] % #7->\namepartsuffix, #8->\namepartsuffixi
}
\DeclareFieldFormat{title}{{\space\UniLightCnI{#1}}}
\DeclareFieldFormat{url}{{\UniLight URL:\space\url{#1}}}
\DeclareFieldFormat{isbn}{{\UniLight ISBN:\space{#1}}}
\DeclareFieldFormat{edition}{{#1\addcomma}}
\DeclareNameAlias{sortname}{given-family}
\DeclareFieldFormat{visited}{\bibstring{abgerufen am}\space #1}
\DeclareBibliographyDriver{website}
{%
    {\UniCn\printfield{organization}}%
        {\UniLight\space(o.J.):}\printfield{title}\adddot%
    \UniLight\newline\nobreak%
    Onlinedokumentation\adddot\space%
    \printfield{url}\addcomma\space%
    \printfield{visited}%
    \finentry%
}
\DeclareBibliographyDriver{book}
{%
    {\UniCn\printnames{author}}%
        {\UniLight\space(\printfield{year}):}\printfield{title}\adddot%
    \UniLight\newline%
    \printlist{location}:\space%
    \printfield{edition}\space%
    \printlist{publisher}\space%
    \finentry%
}
\DeclareBibliographyDriver{techreport}
{%
    {\UniCn\printnames{author}}%
        {\UniLight\space(\printfield{year}):}\printfield{title}\adddot%
    \UniLight\newline\nobreak%
    \printlist{location}:\space%
    \printfield{edition}\space%
    \printlist{publisher}\space%
    \finentry%
}

Have you tried the patch of this answer? – dexteritas Sep 06 '23 at 14:42 — dexteritas, Sep 06 '23 at 14:42

score 0 · Accepted Answer · answered Sep 06 '23 at 13:51

Since I didn't get an answer, I went back to it myself. Actually it is quite simple, you just have to come up with it.

\usepackage{needspace}
% The number determines how many lines of space the entry takes.
\AtEveryBibitem{\needspace{3\baselineskip}}

It is important to note that both commands must be included after biblatex.

Page break in the middle of Biblatex source item

1 Answers1