1. Ginzburg, V. L. (1964).Sov. Phys.-Dokl,9, 329.
2. Ginzburg, V. L. and Ozernoi, L. M. (1965).Sov. Phys.-JETP,20, 689.
3. Cocke, W. J. (1966).Phys. Rev.,145, 1000.
4. Yodzis, P. (1971).Phys. Rev. D,3, 2941.
5. Lichnerowicz, A. (1967).Relativistic Hydrodynamics and Magnetohydrodynamics (Benjamin, New York), Chap. 4.