Shortened footnote and citation:
{{sfn | Venzke | 1992 | p=}}
* {{cite book | last=Venzke | first=Andreas | title=Christoph Kolumbus | publisher=Rowohlt | publication-place=Reinbek bei Hamburg | date=1992 | isbn=3-499-50449-9 | language=de}}
Named reference:
<ref name="x443">{{cite book | last=Venzke | first=Andreas | title=Christoph Kolumbus | publisher=Rowohlt | publication-place=Reinbek bei Hamburg | date=1992 | isbn=3-499-50449-9 | language=de | page=}}</ref>