@misc{Ioannes_de_Slupcza_(1408–1488)_Principium,
 author={Ioannes de Slupcza (1408–1488) and Gilbertus Porretanus},
 howpublished={online},
 language={lat},
 title={Principium in Apocalypsim},
 title={Quaestio},
 title={Commentum in Apocalypsim cum textu},
 title={Prologus in Apocalypsim. Fragmentum initiale},
 keywords={15 w., biblistyka, egzegeza biblijna, apokaliptyka},
}