@misc{Piotrowicki_Jakub_(1591-1643)_Qvæstio,
 author={Piotrowicki, Jakub (1591-1643)},
 howpublished={online},
 publisher={Maciej Jędrzejowczyk},
 language={lat},
 title={Qvæstio De Principiis & Natura Intellectionis},
 type={starodruk},
}