Shortened footnote and citation:
{{sfn|Verl. Europa-Lehrmittel Nourney, Vollmer|1989|p=}}
* {{cite book | title=Fachkunde Elektrotechnik | publisher=Verl. Europa-Lehrmittel Nourney, Vollmer | publication-place=Wuppertal | date=1989 | isbn=3-8085-3018-9 | language=de | ref={{sfnref|Verl. Europa-Lehrmittel Nourney, Vollmer|1989}}}}
Named reference:
<ref name="c710">{{cite book | title=Fachkunde Elektrotechnik | publisher=Verl. Europa-Lehrmittel Nourney, Vollmer | publication-place=Wuppertal | date=1989 | isbn=3-8085-3018-9 | language=de | page=}}</ref>