1. M. N. Rosenbluth:Phys. Rev.,79, 615 (1950); see also:D. R. Yennie:Nucleon Structure, edited byR. Hofstadter andL. Schiff (Stanford, Cal., 1964), p. 11.
2. See for example:T. A. Griffy, R. Hofstadter, E. B. Hughes, T. Jonssens andM. R. Yearian:Nucleon Structure, edited byR. Hofstadter andL. Schiff (Stanford, Cal., 1964), p. 61.
3. See for example:K. Berkelman:Nucleon Structure, edited byR. Hofstadter andL. Schiff (Stanford, Cal., 1964), p. 45.
4. S. D. Drell:Form factors of elementary particles, p. 184 of the:Rendiconti S.I.F., Course XXVII (New York and London, 1963).
5. A. Browman andJ. Pine:Nucleon Structure, edited byR. Hofstadter andL. Schiff (Stanford, Cal., 1964), p. 85.