Shortened footnote and citation:
{{sfn|Jasper|1997|p=}}

* {{cite book | last=Jasper | first=Dirk | title=Prüfungsvorbereitung BWL | publisher=Gabler Verlag | publication-place=Wiesbaden | date=1997-06-26 | isbn=3-409-29745-6 | language=de}}


Named reference:
<ref name="w770">{{cite book | last=Jasper | first=Dirk | title=Prüfungsvorbereitung BWL | publisher=Gabler Verlag | publication-place=Wiesbaden | date=1997-06-26 | isbn=3-409-29745-6 | language=de | page=}}</ref>