Maxwell and non-Maxwell behavior of electron energy distribution function under expanding plasma jet conditions: The role of electron-electron, electron-ion, and superelastic electronic collisions under stationary and time-dependent conditions
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics. 1996 Aug;54(2):1843-1849.
doi: 10.1103/physreve.54.1843.