Yang-Soo Kim, Seung-Taek Oh, and Jae-Hyun Lim. “The Control Method for Wavelength-Based CCT of Natural Light Using Warm/Cool White LED”. Proceedings of Engineering and Technology Innovation 25 (August 31, 2023): 35–43. Accessed November 23, 2024. https://ojs.imeti.org/index.php/PETI/article/view/12418.