1. V. Yu. Baranov and K. N. Ul’yanov, Teplofiz. Vys. Temp. 6, 23 (1968).
2. O. A. Gorshkov, V. A. Muravlev, and A. A. Shagaida, Hall-Type and Ion-Plasma Thrusters for Space Vehicles (Mashinostroenie, Moscow, 2008), Ch. 3, p. 88 [in Russian].
3. K. N. Ul’yanov, Teplofiz. Vys. Temp 46, 382 (2008) [High Temp. 46, 331 (2008)].
4. A. N. Tkachev and S. I. Yakovlenko, Pis’ma Zh. Eksp. Teor. Fiz. 77, 264 (2003) [JETP Lett. 77, 221 (2003)].
5. V. A. Rozhanskii and L. D. Tsendin, Collisional Transfer in Partly Ionized Plasma (Energoatomizdat, Moscow, 1988), Ch. 2, p. 45 [in Russian].