M. R. MONAZZAM, M. NADERZADEH, P. NASSIRI, and S. M. B. FARD, “Performance of Environmental T-shape Noise Barriers Covered with Primitive Root Diffusers”, Arch. Acoust., vol. 35, no. 4, pp. 565–578, Nov. 2013, Accessed: Jan. 17, 2026. [Online]. Available: https://acoustics.ippt.gov.pl/index.php/aa/article/view/214