1. See e.g.: Sard: Relativistic mechanics. New York: Benjamin 1970. The effects of orbit curvature on interparticle forces have recently been discussed in: R. Talman: Phys. Rev. Lett. 56 (1986) 1429; A. Piwinski: CERN/LEP-TH/85-43; M. Bassetti: CERN/LEP-TH/86-13; M. Bassetti, D. Brandt: CERN/LEP-TH/86-04. These effects are not considered in this paper
2. J.M. Kapchinskij, V.V. Vladimirskij: Conference on High-Energy Accelerators and Instrumentation, p. 274, CERN, Geneva (1959)
3. S. Ohnuma, J.N. Vitale: IEEE Trans. Nucl. Sci. 14 (1967) 594
4. F.J. Sacherer: IEEE Trans. Nucl. Sci. 18 (1971) 1105
5. E.A. Karantzoulis, J.R.M. Maidment: Beam dynamics at low energy in DESY III. DESY-HERA 86-01