@misc{_Prima,
 howpublished={online},
 language={ger},
 language={lat},
 type={rękopis},
 title={Prima elementa philosophiae lecta a D. Winkelmanno, scripta a Gotf. Erd. Petri Sor(au) 1753},
 keywords={Petri, Gottfried Erdmann (1739-1803), rękopisy, filozofia},
}