HOLZAPFEL, K. Ernst Engelberg: Bismarck. Das Reich in der Mitte Europas, München 1993. Comparativ, [S. l.], v. 3, n. 3, p. 156–157, 2017. Disponível em: https://www.comparativ.net/v2/article/view/63. Acesso em: 29 mar. 2024.