A. Soltani and  M. Karimi Demneh,  Analyzing of Noise inside a Simple Vehicle Cabin using Boundary Element Method.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2011, vol. 49(1). 108 - 112
    [viewed 18 February 2020]. Available from: https://publications.waset.org/pdf/15919.