BICKHOFF, N. Die schwäbischen Wurzeln des Boris Johnson. Rundbrief, [S. l.], n. 28, p. 25–27, 2019. DOI: 10.53458/rb.vi28.5141. Disponível em: https://journals.wlb-stuttgart.de/ojs/index.php/rb/article/view/5141. Acesso em: 5 mai. 2024.