“Heretical Iconography: The Vultus Trifrons of the Church of Santa María la Mayor of Fuentepelayo (Segovia)”. TRIM. Tordesillas, revista de investigación multidisciplinar, no. 16 (May 7, 2019): 41–53. Accessed October 31, 2026. https://revistas.uva.es/index.php/trim/article/view/3616.