Rubinetti, D, D Weiss, and W Egli. “Corona Discharge – A Fully Coupled Numerical Approach Verified and Validated”. The International Journal of Multiphysics 11, no. 4 (December 31, 2017): 375-386. Accessed June 26, 2022. http://journal.multiphysics.org/index.php/IJM/article/view/11-4-375.