1. The Theory of Ionization of Gases by Collision;Townsend,1910
2. Determination of Towsend ionization coefficient a in the presence of some of the elementary processes;Moralyov,1937
3. Effect of Penning ionisation on the Townsend first ionisation coefficient of pulsed and steady-state Townsend experiments in Ar/Ne mixtures
4. Calculations of electron transfer parameters in helium xenon mixture;Golyatina,2014
5. The Townsend coefficient of ionization in dense gases and fluids