Medina, J. M., A. Rodríguez, E. Medina, and M. J. Cassinello. “Factors Defining Gothic Lighting. Relationship Between Volume, Structure and Luminous Result in Spanish Cathedrals”. Revista De La Construcción. Journal of Construction, vol. 16, no. 1, Apr. 2017, pp. 9-21, doi:10.7764/RDLC.16.1.9.