Shortened footnote and citation:
{{sfn | Schössler | 1991 | p=}}
* {{cite book | last=Schössler | first=Dietmar | title=Carl von Clausewitz | publisher=Rowohlt | publication-place=Reinbek bei Hamburg | date=1991 | isbn=3-499-50448-0 | language=de}}
Named reference:
<ref name="s347">{{cite book | last=Schössler | first=Dietmar | title=Carl von Clausewitz | publisher=Rowohlt | publication-place=Reinbek bei Hamburg | date=1991 | isbn=3-499-50448-0 | language=de | page=}}</ref>