Shortened footnote and citation:
{{sfn|Heidenreich|2021|p=}}
* {{cite book | last=Heidenreich | first=Elke | title=Hier geht's lang! | publisher=Eisele | publication-place=Mùˆnchen | date=2021-09-27 | isbn=978-3-96161-120-1 | oclc=on1281644726 | language=de}}
Named reference:
<ref name="j979">{{cite book | last=Heidenreich | first=Elke | title=Hier geht's lang! | publisher=Eisele | publication-place=Mùˆnchen | date=2021-09-27 | isbn=978-3-96161-120-1 | oclc=on1281644726 | language=de | page=}}</ref>