Derpich, L.C., Nikola. “‘Haec Ecclesia… Subsistit in Ecclesia catholica’ (LG 8): The Subsistence of the Church of Christ As a Starting Point Toward Catholic Unity”. Alpha Omega 21, no. 2 (August 28, 2018): 181–215. Accessed November 7, 2026. https://riviste.upra.org/index.php/ao/article/view/77.