Documentatie Middelnederlandse handschriften
Indices of chants in selected manuscripts and early printed sources of the liturgical Office. University of Western Ontario (Canada)
The University of Michigan (Ann Arbor, USA)
University of Oxford
| | Bibliotheca Neerlandica Manuscripta Documentatie Middelnederlandse handschriften |
| | CANTUS, A Database for Latin Ecclesiastical
Chant. Indices of chants in selected manuscripts and early printed sources of the liturgical Office. University of Western Ontario (Canada) |
| | RELICS. Renaissance Liturgical
Imprints: A Census The University of Michigan (Ann Arbor, USA) |
| | DIAMM, Digital Image Archive of Medieval Music University of Oxford |
 | St Patrick's Church, Index of Saints |
| | Das Ökumenische Heiligenlexikon |
 | THE KNIGHTS HOSPITALLER: Ancient and Modern |
| | Order of Canons Regular of Prémontré |
| | Ordo Sanctae Crucis |
| | Matrix (on women's convents) |
 | RISM |
| | PIMS-LMLO website |
| | Musica Devota |
| | Repertorium necrologische bronnen Nederland |
The visitors who are looking for the site that helps analysing the CANTUS files and Hughes' LMLO can visit my CANTUS/LMLO Analysis site.