@misc{Petrus_Blesensis_Acta,
 author={Petrus Blesensis and Wenceslaus, episcopus Wratislaviensis and Petrus de Hallis and Petrus de Vinea and Johannes Lemovicensis and Petrus de Pretio},
 howpublished={online},
 language={lat},
 title={Acta tempore Friderici II imperatoris ; Epistolae ; Constitutiones et formularae constitutionum et rescriptorum},
 keywords={15 w., historia, epistolografia},
}