@misc{Halle_J.S.L._(czynny_ca_1790)_[Vieth,
 author={Halle, J.S.L. (czynny ca 1790)},
 address={Berlin},
 howpublished={online},
 language={ger},
 title={[Vieth Gerhard Ulrich Anton]},
 keywords={portrait, man, bust, teacher, mathematician, German graphics, engraving, 18-19 w., 18.-19. Jh., 18-19 century},
}