1. Berestetskii, V. B., Lifshitz, E. M. & Pitaevskii, L. P. 1989, Quantum Electrodynamics (3d ed., Japanese trans.; Tokyo: Marruzen)
2. Accretion Disc Electrodynamics -- A Model for Double Radio Sources
3. Blandford, R. D. 1989, in Theory of Accretion Disks, ed. P. Meyer, W. Duschl, J. Frank, & E. Meyer-Hofmeister (Dordrecht: Kluwer), 35
4. Blandford, R. D. 1993, in AIP Conf. Proc. 280, Proceedings of the Compton Symposium 1992, ed. M. Friedlander, N. Gehrel, & D. J. Macomb (New York: AIP), 553