@misc{Alexander_de_Villa_Dei_(1175-1240)_Tractatus,
 author={Alexander de Villa Dei (1175-1240)},
 howpublished={online},
 publisher={Arnoldus von Cöllen},
 language={lat},
 type={inkunabuł},
 title={Tractatus de accentibus quarundam dictionum in Psalterio secundum Alexandrum in tertia parte sacerdotibus multum necessarius},
}