@misc{_Propria,
 howpublished={online},
 publisher={Christoph Lertz},
 language={lat},
 title={Propria Officia Sanctorum Dioecesis Wratislaviensis. : Ex approbatis a Sede Apostolica ad usum Breviarii Romani. : Serenissimi [...] Leopoldi Guilielmi Archiducis Austriæ &c. Episcopi Wratislaviensis Jussu & Auctoritate edita},
 type={starodruk},
 keywords={Proprium officii (Wrocław)},
}