Shortened footnote and citation:
{{sfn|Popper|2022|p=}}

* {{cite book | last=Popper | first=Karl R. | title=Science: Conjectures and Refutations / Wissenschaft: Vermutungen und Widerlegungen | publisher=Reclam | publication-place=Ditzingen | date=2022-03-18 | isbn=978-3-15-014076-5 | language=de}}


Named reference:
<ref name="c190">{{cite book | last=Popper | first=Karl R. | title=Science: Conjectures and Refutations / Wissenschaft: Vermutungen und Widerlegungen | publisher=Reclam | publication-place=Ditzingen | date=2022-03-18 | isbn=978-3-15-014076-5 | language=de | page=}}</ref>