LUNDGREEN-NIELSEN, K. John A. Leopold: Alfred Hugenberg. The Radical Nationalist Campaign against the Weimar Republic. New Haven and London. Yale University Press, 1977. 298 s. Historisk Tidsskrift, [S. l.], v. 13, 1979. Disponível em: https://tidsskrift.dk/historisktidsskrift/article/view/52110. Acesso em: 23 maj. 2024.