E. WALERIAN, R. JANCZUR, M. CZECHOWICZ, and Y. SMYRNOVA, “Possible Improvement of Acoustical Climate. Part II: Possible Solutions”, Arch. Acoust., vol. 35, no. 4, pp. 595–618, Dec. 2010, Accessed: Mar. 04, 2026. [Online]. Available: https://acoustics.ippt.gov.pl/index.php/aa/article/view/216