Shortened footnote and citation:
{{sfn|Voigt|2017|p=}}

* {{cite book | last=Voigt | first=Matthias | title=Bildungsarmut | publisher=Springer VS | publication-place=Wiesbaden | date=2017-11-29 | isbn=978-3-658-20177-7 | language=de}}


Named reference:
<ref name="z205">{{cite book | last=Voigt | first=Matthias | title=Bildungsarmut | publisher=Springer VS | publication-place=Wiesbaden | date=2017-11-29 | isbn=978-3-658-20177-7 | language=de | page=}}</ref>