ARUP, E. W.M.Peitz: Untersuchungen zu Urkundenfalschungen des Mittelalters. I. Die Hamburger Falschungen. Freiburg (Herder) 1919. Historisk Tidsskrift, [S. l.], v. 9, 1923. Disponível em: https://tidsskrift.dk/historisktidsskrift/article/view/55240. Acesso em: 24 nov. 2024.