1. Early Medieval Canon Law;The Cambridge History of Medieval Canon Law;2022-01-27
2. Konfliktlösung durch Synoden;Konfliktlösung im Mittelalter;2021
3. General Index;Rome and the Invention of the Papacy;2020-06-30
4. Index of Manuscripts;Rome and the Invention of the Papacy;2020-06-30
5. Bibliography;Rome and the Invention of the Papacy;2020-06-30