Shortened footnote and citation:
{{sfn | Baier | 2004 | p=}}

* {{cite book | last=Baier | first=Stephan | title=Kinderlos | publisher=MM Verlag | publication-place=Aachen | date=2004 | isbn=3-928272-16-0 | language=de}}


Named reference:
<ref name="j920">{{cite book | last=Baier | first=Stephan | title=Kinderlos | publisher=MM Verlag | publication-place=Aachen | date=2004 | isbn=3-928272-16-0 | language=de | page=}}</ref>