BOWLUS, C. R. Archbishop Theotmar of Salzburg’s Letter to Pope John IX. A Forgery of Bishop Pilgrim of Passau?. Südost-Forschungen, [S. l.], v. 1, n. 1, p. 1–11, 2021. Disponível em: https://www.suedost-forschungen.de/portal/index.php/sof/article/view/7597. Acesso em: 18 juni. 2025.