Lombard, Christo. “Theology for the Twenty-First Century – Going Beyond Barth?”. NGTT | Nederduitse Gereformeerde Teologiese Tydskrif 54, no. Supp 2 (December 18, 2013): 209–220. Accessed October 18, 2025. https://ojs.reformedjournals.co.za/index.php/ngtt/article/view/636.