Tony Schönherr and  Kimiya Komurasaki and  Georg Herdrich,  Study on Plasma Creation and Propagation in a Pulsed Magnetoplasmadynamic Thruster.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2011, vol. 50(2). 386 - 392
    [viewed 16 October 2019]. Available from: https://publications.waset.org/pdf/626.