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

* {{cite book | last=Keyserling | first=Eduard von | title=Fürstinnen | publisher=Manesse Verlag | publication-place=Zürich | date=2017-05-09 | isbn=978-3-7175-2436-6 | language=de}}


Named reference:
<ref name="x737">{{cite book | last=Keyserling | first=Eduard von | title=Fürstinnen | publisher=Manesse Verlag | publication-place=Zürich | date=2017-05-09 | isbn=978-3-7175-2436-6 | language=de | page=}}</ref>