Takahiro Nakamura and  Kenji Takahashi and  Hiroyuki Nishida and  Shunjiro Shinohara and  Takeshi Matsuoka and 
Ikkoh Funaki and  Takao Tanikawa and  Tohru Hada,  Direct Measurement of Electromagnetic Thrust of Electrodeless Helicon Plasma Thruster Using Magnetic Nozzle.   journal   = {International Journal of Physical and Mathematical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    November 2012, vol. 71(11). 1498 - 1502
    [viewed 03 July 2020]. Available from: https://publications.waset.org/pdf/5531.