1. F. Amman, IEEE Trans. on Nucl. Sci., NS-20, 858 (1973). The review of the experimental results up to the beginning of 1973.
2. H. Wiedemann, “Non-Linear Dynamics and the Beam-Beam Interaction (BNL,1979),” M. Month and J. Herrera, editors, AIP, New York, 1979, pp. 84-98. The review of the more recent results.
3. A. Chao, ibid., see 2, pp. 42-68. This paper has a list of theoretical papers on this subject.
4. E. Keil, CERN/ISR/TH/79-32, Geneva, June 25, 1979.
5. H. Wiedemann, these Proceedings.