Shortened footnote and citation:
{{sfn | Köster | 1999 | p=}}
* {{cite book | last=Köster | first=Rudolf | title=Duden Redensarten | publisher=Dudenverlag | publication-place=Mannheim | date=1999-01-01 | isbn=3-411-70501-9 | language=de}}
Named reference:
<ref name="f532">{{cite book | last=Köster | first=Rudolf | title=Duden Redensarten | publisher=Dudenverlag | publication-place=Mannheim | date=1999-01-01 | isbn=3-411-70501-9 | language=de | page=}}</ref>