@misc{_[Jahn,
 address={Berlin},
 howpublished={online},
 publisher={Hel. u. impr. Meisenbach – Rifffarth & Co. Berlin},
 language={ger},
 title={[Jahn Friedrich Ludwig]},
 keywords={portrait, man, bust, theologian, philologist, "father of gymnastics", gymnastics club, heliogravure, Jahn Friedrich Ludwig (1778-1852), 20 w., 20. Jh., 20 century},
}