Shortened footnote and citation:
{{sfn | Poelzig | 1989 | p=}}
* {{cite book | last=Poelzig | first=Hans | title=Hans Poelzig | publisher=Ernst | publication-place=Berlin | date=1989 | isbn=3-433-02091-4 | language=de}}
Named reference:
<ref name="q443">{{cite book | last=Poelzig | first=Hans | title=Hans Poelzig | publisher=Ernst | publication-place=Berlin | date=1989 | isbn=3-433-02091-4 | language=de | page=}}</ref>