Shortened footnote and citation:
{{sfn|Seifert|1999|p=}}

* {{cite book | last=Seifert | first=Karl-Dieter | title=Der deutsche Luftverkehr 1926-1945 | publisher=Bernard & Graefe | publication-place=Bonn | date=1999 | isbn=3-7637-6118-7 | language=de}}


Named reference:
<ref name="m773">{{cite book | last=Seifert | first=Karl-Dieter | title=Der deutsche Luftverkehr 1926-1945 | publisher=Bernard & Graefe | publication-place=Bonn | date=1999 | isbn=3-7637-6118-7 | language=de | page=}}</ref>