Shortened footnote and citation:
{{sfn | Proust | Ritte | 2016 | p=}}

* {{cite book | last=Proust | first=Marcel | last2=Ritte | first2=Jürgen | title=Briefe: zwei Bände | publisher=Suhrkamp Verlag | publication-place=Berlin | date=2016 | isbn=978-3-518-42540-4 | language=de}}


Named reference:
<ref name="a449">{{cite book | last=Proust | first=Marcel | last2=Ritte | first2=Jürgen | title=Briefe: zwei Bände | publisher=Suhrkamp Verlag | publication-place=Berlin | date=2016 | isbn=978-3-518-42540-4 | language=de | page=}}</ref>