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2. “Towards a Europsean Superconducting Synchrotron,” GESSS-I, May 1972.
3. J. P. Blewett, in: Proceedings 8th Intern. Conference on High Energy Accelerators, CERN (1971), p. 501.
4. A. L. Mints, A. A. Vasiljev, and E. L. Burshtein, in: Proceedings 7th Intern. Conference on High Energy Accelerators, Vol. 7, Erevan (1969), p. 60.
5. W. S. Gilbert, R. B. Meuser, and F. L. Toby, in: Proceedings 4th Intern. Conference on Magnet Technology, Brookhaven National Laboratory, New York, September 19–22, 1972, p. 324.