Shortened footnote and citation:
{{sfn|Isaacson|2023|p=}} * {{cite book | last=Isaacson | first=Walter | title=Elon Musk | publisher=C. Bertelsmann | publication-place=München | date=2023-09-12 | isbn=978-3-570-10484-2 | language=de}}


Named reference:
<ref name="y621">{{cite book | last=Isaacson | first=Walter | title=Elon Musk | publisher=C. Bertelsmann | publication-place=München | date=2023-09-12 | isbn=978-3-570-10484-2 | language=de | page=}}</ref>