Shortened footnote and citation:
{{sfn | Holtz-Bacha | 2019 | p=}}
* {{cite book | last=Holtz-Bacha | first=Christina | title=Die (Massen-)Medien im Wahlkampf | publisher=Springer-Verlag | publication-place=Wiesbaden [Heidelberg] | date=2019-02-07 | isbn=978-3-658-24824-6 | language=de}}
Named reference:
<ref name="t987">{{cite book | last=Holtz-Bacha | first=Christina | title=Die (Massen-)Medien im Wahlkampf | publisher=Springer-Verlag | publication-place=Wiesbaden [Heidelberg] | date=2019-02-07 | isbn=978-3-658-24824-6 | language=de | page=}}</ref>