@misc{Keckermann_Bartholomeus_Gymnasium,
 author={Keckermann, Bartholomeus},
 howpublished={online},
 publisher={apud Guilielmum Antonium},
 language={lat},
 title={Gymnasium logicum : id est, de usu et exercitatione logicae artis absolutiori & pleniori libr. 3 : Annis Ab Hinc Aliquot in Academia Heidelbergensi privatis Praelectionibus traditi},
 type={stary druk},
 keywords={Keckermann, Bartłomiej (1572-1609), logika},
}