Krehel, Marek, Lars Oliver Grobe, and Stephen Wittkopf. “A Hybrid Data-Driven BSDF Model to Predict Light Transmission Trough Complex Fenestration Systems Including High Incident Directions”. Journal of Facade Design and Engineering 4, no. 3-4 (December 31, 2016): 79–89. Accessed April 19, 2024. https://jfde.eu/index.php/jfde/article/view/54.