1. Čerenkov, P. A., Dokl. Acad. Nauk S.S.S.R., 2, 451 (1934).
2. Frank, I. M., and Tamm, I. Y., Dokl. Acad. Nauk S.S.S.R., 14, 109 (1937).
3. Heaviside, O., Electrical Papers, II, 494 (Macmillan, London, 1892) (originally published in The Electrician, 83: November 23, 1888).