Abdulrahman S. Abduljalil and  Zhibin Yu and  Artur J. Jaworski and  Lei Shi,  Construction and Performance Characterization of the Looped-Tube Travelling-Wave Thermoacoustic Engine with Ceramic Regenerator.   journal   = {International Journal of Aerospace and Mechanical Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2009, vol. 25(1). 19 - 22
    [viewed 18 April 2021]. Available from: https://publications.waset.org/pdf/6539.