GASSMANN, Jürg. Abbesses and Their Fighting Men: From the Carolingian Capitularies to the Libri Feudorum. Acta Periodica Duellatorum, Bern, v. 10, n. 1, p. 43–73, 2023. DOI: 10.36950/apd-2022-004. Disponível em: https://bop.unibe.ch/apd/article/view/8266. Acesso em: 6 feb. 2025.