Freire-Lista, David Martín, e Rafael Fort González. «Stone Provenance and Conservation of the Trinitarias Descalzas of San Ildefonso Convent, Madrid (Spain)». Ge-conservacion 11 (Junho 25, 2017): 25-33. Acedido Junho 7, 2025. https://ojs3.ge-iic.com/index.php/revista/article/view/438.