Trueman, C. W. ., D. . Davis, and B. . Segal. “Relationship Between the Path Loss Exponent and the Room Absorption for Line-of-Sight Communication”. Applied Computational Electromagnetics Society Journal (ACES), vol. 24, no. 4, June 2022, pp. 361-7, https://journals.riverpublishers.com/index.php/ACES/article/view/15951.