Shortened footnote and citation:
{{sfn | Kemnitz | 2010 | p=}}
* {{cite book | last=Kemnitz | first=Arnfried | title=Mathematik zum Studienbeginn | publisher=Springer Science & Business Media | publication-place=Wiesbaden | date=2010 | isbn=978-3-8348-1293-3 | language=de}}
Named reference:
<ref name="p686">{{cite book | last=Kemnitz | first=Arnfried | title=Mathematik zum Studienbeginn | publisher=Springer Science & Business Media | publication-place=Wiesbaden | date=2010 | isbn=978-3-8348-1293-3 | language=de | page=}}</ref>