WASET
    M. Sasajima and  T. Yamaguchi and  Y. Hu and  Y. Koike,  Finite Element Method Analysis of Occluded-Ear Simulator and Natural Human Ear Canal.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2015, vol. 108(12). 2213 - 2217
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/10005587.