1. D. ter Haar, Collected Papers of L. D. Landau (Pergamon Press, London, 1965), p. 163.
2. V. I. Kogan, in Plasma Physics and the Problem of Controlled Thermonuclear Reactions, edited by M. A. Leontovich (Pergamon Press, New York, 1961), Vol. I, p. 153 [translation from Russian; Kogan's work done in 1951].
3. On the relaxation of anisotropic plasmas
4. Unified Theory of Relaxations in Plasmas, II. Applications