WIEDEMANN, E. Zur Geschichte der Familie Herfurth. Personalhistorisk Tidsskrift, [S. l.], v. 44, n. 8_2_3, p. 219–224, 1923. Disponível em: https://tidsskrift.dk/personalhistorisk_tidsskrift/article/view/79277. Acesso em: 28 mar. 2024.