Shortened footnote and citation:
{{sfn | Bernhard | Fellinger | Unseld | Huber | 2009 | p=}}
* {{cite book | last=Bernhard | first=Thomas | last2=Fellinger | first2=Raimund | last3=Unseld | first3=Siegfried | last4=Huber | first4=Martin | last5=Ketterer | first5=Julia | title=Der Briefwechsel | publisher=Suhrkamp | publication-place=Frankfurt am Main | date=2009 | isbn=978-3-518-41970-0 | oclc=501864489 | language=de}}
Named reference:
<ref name="w609">{{cite book | last=Bernhard | first=Thomas | last2=Fellinger | first2=Raimund | last3=Unseld | first3=Siegfried | last4=Huber | first4=Martin | last5=Ketterer | first5=Julia | title=Der Briefwechsel | publisher=Suhrkamp | publication-place=Frankfurt am Main | date=2009 | isbn=978-3-518-41970-0 | oclc=501864489 | language=de | page=}}</ref>