Neal, R. B. (1968). "Chap. 5"(PDF). The Stanford Two-Mile Accelerator. New York, New York: W.A. Benjamin, Inc. p. 59. Archived(PDF) from the original on 14 July 2010. Retrieved 17 September 2010.
Neal, R. B. (1968). "Chap. 5"(PDF). The Stanford Two-Mile Accelerator. New York, New York: W.A. Benjamin, Inc. p. 59. Archived(PDF) from the original on 14 July 2010. Retrieved 17 September 2010.