@misc{Petrus_de_Vineis_(1190?-1249)_Summa_b.,
 author={Petrus de Vineis (1190?-1249)},
 copyright={Public Domain},
 howpublished={online},
 year={b. d.},
 language={lat},
 title={Summa Petrus de Vineis},
 type={Text},
}