PIECHOWICZ J, CZAJKA I. Estimation of Acoustic Impedance for Surfaces Delimiting the Volume of an Enclosed Space. Arch. Acoust. [Internet]. 2012 Mar. 31 [cited 2026 Mar. 4];37(1):97–102. Available from: https://acoustics.ippt.gov.pl/index.php/aa/article/view/132