Shortened footnote and citation:
{{sfn | Schönborn | 2009 | p=}}

* {{cite book | last=Schönborn | first=Hans-Bernhard | title=Die Rhätische Bahn | publisher=GeraMond | publication-place=München | date=2009 | isbn=978-3-7654-7162-9 | language=de}}


Named reference:
<ref name="x506">{{cite book | last=Schönborn | first=Hans-Bernhard | title=Die Rhätische Bahn | publisher=GeraMond | publication-place=München | date=2009 | isbn=978-3-7654-7162-9 | language=de | page=}}</ref>