1. V.L. Ginzburg, On the radiation of microradiowaves and their absorbtion in the air. Isvestia Akademii Nauk SSSR (Fizika) 11(2), 1651 (1947)
2. H. Motz, W. Thon, R.N.J. Whitehurst, Experiments on radiation by fast electron beams. Appl. Phys. 24, 826 (1953)
3. Bagrov V G, Bisnovaty-Kogan G S, Bordovitsyn V A, Borisov A V, Dorofeev O F, Ya Epp V, Pivovarov Y L, Shorokhov O V and Zhukovsky V C 1999 Synchrotron Radiation Theory and Its Development ed V. A. Bordovitsyn (Singapore: Word Scientific) vol. 5, p 447
4. H. Motz, Applications of the radiation from fast electron beams. J. Appl. Phys. 22, 527 (1951)
5. J.M. Madey, Stimulated emission of bremsstrahlung in a periodic magnetic field. J. Appl. Phys. 42, 1906 (1971)