Shortened footnote and citation:
{{sfn|Hammann|2021|p=}}
* {{cite book | last=Hammann | first=Konrad | title=Paul Siebeck und sein Verlag | publisher=Mohr Siebeck | publication-place=Tübingen | date=2021-09-08 | isbn=978-3-16-153885-8 | language=de}}
Named reference:
<ref name="s638">{{cite book | last=Hammann | first=Konrad | title=Paul Siebeck und sein Verlag | publisher=Mohr Siebeck | publication-place=Tübingen | date=2021-09-08 | isbn=978-3-16-153885-8 | language=de | page=}}</ref>