DOBRUCKI, A., & ROSZKOWSKI, C. A. (2016). Measurement of the viscoelastic constants of the cellulose used for a loudspeaker membrane and their effect upon the electro-acoustic parameters of the loudspeaker. Archives of Acoustics, 2(3), 177-188. https://acoustics3.ippt.pan.pl/index.php/aa/article/view/3481