UsuariumA Digital Library and Database for the Study of Latin Liturgical History in the Middle Ages and Early Modern Period
Praesta nobis quaesumus ... mente purificet.
Praesta nobis, quaesumus, omnipotens deus, ut nostrae humilitatis oblatio et pro tuorum grata sit honore sanctorum et nos corpore pariter et mente purificet.
Anyone using the USUARIUM datasets in any way and for any purpose is hereby asked to acknowledge the copyright and the source of the data by including the following attribution statement:
Data retrieved from USUARIUM: A Digital Library and Database for the Study of Latin Liturgical History in the Middle Ages and Early Modern Period (http://usuarium.elte.hu) built by Miklós István Földváry et al. at Eötvös Loránd University (Budapest, Hungary), Research Group of Liturgical History—from 2015 onwards.