@misc{Andreae_Ioannes_(c._1270_–_1348)_Summa,
 author={Andreae, Ioannes (c. 1270 – 1348)},
 howpublished={online},
 publisher={[Gregorius Böttiger]},
 language={lat},
 type={inkunabuł},
 title={Summa de sponsalibus et matrimoniis},
}