1. See, for example, Nonlinear Dynamics and the Beam-beam Interaction, BNL, AIP Proc. No. 57, M. Month and J.C. Herrera, eds., 1979.
2. B. Richter, Proc. Int. Symp. Electron and Positron Storage Rings, Saclay, 1966, p. I-1-1.
3. M.H.R. Donald and J.M. Paterson, An Investigation of the Flip-flop Beam-beam Effect in SPEAR, IEEE Trans. Nuc. Sci. NS-26, 3580 (1979).
4. H. Wiedemann, Experiments on the Beam-beam Effect in e+e-Storage Rings, AIP Proc. No. 57, M. Month and J.C. Herrera, eds., 84 (1979).
5. J.F. Tennyson, Flip-flop Modes in Symmetric and Asymmetric Colliding-beam Storage Rings, LBL-28013 (1989).