@misc{Niger_Petrus_Clypeus,
 author={Niger, Petrus},
 howpublished={online},
 publisher={Novimagio, Reynaldus de},
 language={lat},
 type={inkunabuły},
 title={Clypeus Thomistarum contra Scotistas editus, sive Quaestiones super Arte vetere Aristotelis},
}