Shortened footnote and citation:
{{sfn|Hahn|Jansen|1997|p=}}

* {{cite book | last=Hahn | first=Ronald M. | last2=Jansen | first2=Volker | title=Lexikon des Science-fiction-Films | publisher=Heyne | publication-place=München | date=1997 | isbn=3-453-11860-X | language=de}}


Named reference:
<ref name="i172">{{cite book | last=Hahn | first=Ronald M. | last2=Jansen | first2=Volker | title=Lexikon des Science-fiction-Films | publisher=Heyne | publication-place=München | date=1997 | isbn=3-453-11860-X | language=de | page=}}</ref>