Shortened footnote and citation:
{{sfn | Groneck | 2006 | p=}}
* {{cite book | last=Groneck | first=Christoph | title=Metros in Frankreich | publisher=R. Schwandl | publication-place=Berlin | date=2006 | isbn=3-936573-13-1 | language=de}}
Named reference:
<ref name="z208">{{cite book | last=Groneck | first=Christoph | title=Metros in Frankreich | publisher=R. Schwandl | publication-place=Berlin | date=2006 | isbn=3-936573-13-1 | language=de | page=}}</ref>