http://ontesla.com/
http://kaizerpowerelectronics.dk/
https://www.stevehv.4hv.org/
http://www.loneoceans.com/
http://iopscience.iop.org/article/10.1088/0022-3727/47/35/355201
http://people.physics.anu.edu.au/~jnh112/AIIM/c17/Plasma_discharge_fundamentals.pdf