Shortened footnote and citation:
{{sfn | Simons | 2018 | p=}}
* {{cite book | last=Simons | first=Michael | title=Spring Boot 2 | publisher=dpunkt.verlag | publication-place=Heidelberg | date=2018-04-30 | isbn=978-3-86490-525-4 | language=de}}
Named reference:
<ref name="i196">{{cite book | last=Simons | first=Michael | title=Spring Boot 2 | publisher=dpunkt.verlag | publication-place=Heidelberg | date=2018-04-30 | isbn=978-3-86490-525-4 | language=de | page=}}</ref>