Shortened footnote and citation:
{{sfn | Gabriel | 2006 | p=}}

* {{cite book | last=Gabriel | first=Gabriele | title=Schuldschein gegen Totenschein | publisher=projekte verlag 188 | publication-place=Halle (Saale) | date=2006 | isbn=3-86634-096-6 | language=de}}


Named reference:
<ref name="w664">{{cite book | last=Gabriel | first=Gabriele | title=Schuldschein gegen Totenschein | publisher=projekte verlag 188 | publication-place=Halle (Saale) | date=2006 | isbn=3-86634-096-6 | language=de | page=}}</ref>