KRÖTKE, W. Historical overview of the Barmen Theological Declaration of 1934. NGTT | Nederduitse Gereformeerde Teologiese Tydskrif, [S. l.], v. 47, n. 1&2, 2006. DOI: 10.17570/ngtt.2006.v47n1.a24. Disponível em: https://ojs.reformedjournals.co.za/index.php/ngtt/article/view/1194. Acesso em: 18 oct. 2025.