WASET
    Yue Hu and  Xilu Zhao and  Takao Yamaguchi and  Manabu Sasajima and  Yoshio Koike and  Akira Hara,  Optimization of Loudspeaker Part Design Parameters by Air Viscosity Damping Effect.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    October 2016, vol. 119(11). 587 - 592
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/10005860.